diff --git a/app/migrations.go b/app/migrations.go
index 21295aa840..70c11b75fc 100644
--- a/app/migrations.go
+++ b/app/migrations.go
@@ -46,7 +46,7 @@ func (s *Server) doAdvancedPermissionsMigration() {
 		// If this failed for reasons other than the role already existing, don't mark the migration as done.
 		fetchedRole, err := s.Store().Role().GetByName(context.Background(), role.Name)
 		if err != nil {
-			mlog.Critical("Failed to migrate role to database.", mlog.Err(err))
+			mlog.Fatal("Failed to migrate role to database.", mlog.Err(err))
 			allSucceeded = false
 			continue
 		}
@@ -59,7 +59,7 @@ func (s *Server) doAdvancedPermissionsMigration() {
 			role.Id = fetchedRole.Id
 			if _, err = s.Store().Role().Save(role); err != nil {
 				// Role is not the same, but failed to update.
-				mlog.Critical("Failed to migrate role to database.", mlog.Err(err))
+				mlog.Fatal("Failed to migrate role to database.", mlog.Err(err))
 				allSucceeded = false
 			}
 		}
@@ -81,7 +81,7 @@ func (s *Server) doAdvancedPermissionsMigration() {
 	}
 
 	if err := s.Store().System().Save(&system); err != nil {
-		mlog.Critical("Failed to mark advanced permissions migration as completed.", mlog.Err(err))
+		mlog.Fatal("Failed to mark advanced permissions migration as completed.", mlog.Err(err))
 	}
 }
 
@@ -114,21 +114,21 @@ func (s *Server) doEmojisPermissionsMigration() {
 	// Emoji creation is set to all by default
 	role, err = s.GetRoleByName(context.Background(), model.SystemUserRoleId)
 	if err != nil {
-		mlog.Critical("Failed to migrate emojis creation permissions from mattermost config.", mlog.Err(err))
+		mlog.Fatal("Failed to migrate emojis creation permissions from mattermost config.", mlog.Err(err))
 		return
 	}
 
 	if role != nil {
 		role.Permissions = append(role.Permissions, model.PermissionCreateEmojis.Id, model.PermissionDeleteEmojis.Id)
 		if _, nErr := s.Store().Role().Save(role); nErr != nil {
-			mlog.Critical("Failed to migrate emojis creation permissions from mattermost config.", mlog.Err(nErr))
+			mlog.Fatal("Failed to migrate emojis creation permissions from mattermost config.", mlog.Err(nErr))
 			return
 		}
 	}
 
 	systemAdminRole, err = s.GetRoleByName(context.Background(), model.SystemAdminRoleId)
 	if err != nil {
-		mlog.Critical("Failed to migrate emojis creation permissions from mattermost config.", mlog.Err(err))
+		mlog.Fatal("Failed to migrate emojis creation permissions from mattermost config.", mlog.Err(err))
 		return
 	}
 
@@ -138,7 +138,7 @@ func (s *Server) doEmojisPermissionsMigration() {
 		model.PermissionDeleteOthersEmojis.Id,
 	)
 	if _, err := s.Store().Role().Save(systemAdminRole); err != nil {
-		mlog.Critical("Failed to migrate emojis creation permissions from mattermost config.", mlog.Err(err))
+		mlog.Fatal("Failed to migrate emojis creation permissions from mattermost config.", mlog.Err(err))
 		return
 	}
 
@@ -148,7 +148,7 @@ func (s *Server) doEmojisPermissionsMigration() {
 	}
 
 	if err := s.Store().System().Save(&system); err != nil {
-		mlog.Critical("Failed to mark emojis permissions migration as completed.", mlog.Err(err))
+		mlog.Fatal("Failed to mark emojis permissions migration as completed.", mlog.Err(err))
 	}
 }
 
@@ -167,26 +167,26 @@ func (s *Server) doGuestRolesCreationMigration() {
 	allSucceeded := true
 	if _, err := s.Store().Role().GetByName(context.Background(), model.ChannelGuestRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.ChannelGuestRoleId]); err != nil {
-			mlog.Critical("Failed to create new guest role to database.", mlog.Err(err))
+			mlog.Fatal("Failed to create new guest role to database.", mlog.Err(err))
 			allSucceeded = false
 		}
 	}
 	if _, err := s.Store().Role().GetByName(context.Background(), model.TeamGuestRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.TeamGuestRoleId]); err != nil {
-			mlog.Critical("Failed to create new guest role to database.", mlog.Err(err))
+			mlog.Fatal("Failed to create new guest role to database.", mlog.Err(err))
 			allSucceeded = false
 		}
 	}
 	if _, err := s.Store().Role().GetByName(context.Background(), model.SystemGuestRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.SystemGuestRoleId]); err != nil {
-			mlog.Critical("Failed to create new guest role to database.", mlog.Err(err))
+			mlog.Fatal("Failed to create new guest role to database.", mlog.Err(err))
 			allSucceeded = false
 		}
 	}
 
 	schemes, err := s.Store().Scheme().GetAllPage("", 0, 1000000)
 	if err != nil {
-		mlog.Critical("Failed to get all schemes.", mlog.Err(err))
+		mlog.Fatal("Failed to get all schemes.", mlog.Err(err))
 		allSucceeded = false
 	}
 	for _, scheme := range schemes {
@@ -201,7 +201,7 @@ func (s *Server) doGuestRolesCreationMigration() {
 				}
 
 				if savedRole, err := s.Store().Role().Save(teamGuestRole); err != nil {
-					mlog.Critical("Failed to create new guest role for custom scheme.", mlog.Err(err))
+					mlog.Fatal("Failed to create new guest role for custom scheme.", mlog.Err(err))
 					allSucceeded = false
 				} else {
 					scheme.DefaultTeamGuestRole = savedRole.Name
@@ -217,7 +217,7 @@ func (s *Server) doGuestRolesCreationMigration() {
 			}
 
 			if savedRole, err := s.Store().Role().Save(channelGuestRole); err != nil {
-				mlog.Critical("Failed to create new guest role for custom scheme.", mlog.Err(err))
+				mlog.Fatal("Failed to create new guest role for custom scheme.", mlog.Err(err))
 				allSucceeded = false
 			} else {
 				scheme.DefaultChannelGuestRole = savedRole.Name
@@ -225,7 +225,7 @@ func (s *Server) doGuestRolesCreationMigration() {
 
 			_, err := s.Store().Scheme().Save(scheme)
 			if err != nil {
-				mlog.Critical("Failed to update custom scheme.", mlog.Err(err))
+				mlog.Fatal("Failed to update custom scheme.", mlog.Err(err))
 				allSucceeded = false
 			}
 		}
@@ -241,7 +241,7 @@ func (s *Server) doGuestRolesCreationMigration() {
 	}
 
 	if err := s.Store().System().Save(&system); err != nil {
-		mlog.Critical("Failed to mark guest roles creation migration as completed.", mlog.Err(err))
+		mlog.Fatal("Failed to mark guest roles creation migration as completed.", mlog.Err(err))
 	}
 }
 
@@ -260,19 +260,19 @@ func (s *Server) doSystemConsoleRolesCreationMigration() {
 	allSucceeded := true
 	if _, err := s.Store().Role().GetByName(context.Background(), model.SystemManagerRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.SystemManagerRoleId]); err != nil {
-			mlog.Critical("Failed to create new role.", mlog.Err(err), mlog.String("role", model.SystemManagerRoleId))
+			mlog.Fatal("Failed to create new role.", mlog.Err(err), mlog.String("role", model.SystemManagerRoleId))
 			allSucceeded = false
 		}
 	}
 	if _, err := s.Store().Role().GetByName(context.Background(), model.SystemReadOnlyAdminRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.SystemReadOnlyAdminRoleId]); err != nil {
-			mlog.Critical("Failed to create new role.", mlog.Err(err), mlog.String("role", model.SystemReadOnlyAdminRoleId))
+			mlog.Fatal("Failed to create new role.", mlog.Err(err), mlog.String("role", model.SystemReadOnlyAdminRoleId))
 			allSucceeded = false
 		}
 	}
 	if _, err := s.Store().Role().GetByName(context.Background(), model.SystemUserManagerRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.SystemUserManagerRoleId]); err != nil {
-			mlog.Critical("Failed to create new role.", mlog.Err(err), mlog.String("role", model.SystemUserManagerRoleId))
+			mlog.Fatal("Failed to create new role.", mlog.Err(err), mlog.String("role", model.SystemUserManagerRoleId))
 			allSucceeded = false
 		}
 	}
@@ -287,7 +287,7 @@ func (s *Server) doSystemConsoleRolesCreationMigration() {
 	}
 
 	if err := s.Store().System().Save(&system); err != nil {
-		mlog.Critical("Failed to mark system console roles creation migration as completed.", mlog.Err(err))
+		mlog.Fatal("Failed to mark system console roles creation migration as completed.", mlog.Err(err))
 	}
 }
 
@@ -302,7 +302,7 @@ func (s *Server) doCustomGroupAdminRoleCreationMigration() {
 	allSucceeded := true
 	if _, err := s.Store().Role().GetByName(context.Background(), model.SystemCustomGroupAdminRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.SystemCustomGroupAdminRoleId]); err != nil {
-			mlog.Critical("Failed to create new role.", mlog.Err(err), mlog.String("role", model.SystemCustomGroupAdminRoleId))
+			mlog.Fatal("Failed to create new role.", mlog.Err(err), mlog.String("role", model.SystemCustomGroupAdminRoleId))
 			allSucceeded = false
 		}
 	}
@@ -317,7 +317,7 @@ func (s *Server) doCustomGroupAdminRoleCreationMigration() {
 	}
 
 	if err := s.Store().System().Save(&system); err != nil {
-		mlog.Critical("Failed to mark custom group admin role creation migration as completed.", mlog.Err(err))
+		mlog.Fatal("Failed to mark custom group admin role creation migration as completed.", mlog.Err(err))
 	}
 }
 
@@ -337,7 +337,7 @@ func (s *Server) doContentExtractionConfigDefaultTrueMigration() {
 	}
 
 	if err := s.Store().System().Save(&system); err != nil {
-		mlog.Critical("Failed to mark content extraction config migration as completed.", mlog.Err(err))
+		mlog.Fatal("Failed to mark content extraction config migration as completed.", mlog.Err(err))
 	}
 }
 
@@ -352,31 +352,31 @@ func (s *Server) doPlaybooksRolesCreationMigration() {
 	allSucceeded := true
 	if _, err := s.Store().Role().GetByName(context.Background(), model.PlaybookAdminRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.PlaybookAdminRoleId]); err != nil {
-			mlog.Critical("Failed to create new playbook admin role to database.", mlog.Err(err))
+			mlog.Fatal("Failed to create new playbook admin role to database.", mlog.Err(err))
 			allSucceeded = false
 		}
 	}
 	if _, err := s.Store().Role().GetByName(context.Background(), model.PlaybookMemberRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.PlaybookMemberRoleId]); err != nil {
-			mlog.Critical("Failed to create new playbook member role to database.", mlog.Err(err))
+			mlog.Fatal("Failed to create new playbook member role to database.", mlog.Err(err))
 			allSucceeded = false
 		}
 	}
 	if _, err := s.Store().Role().GetByName(context.Background(), model.RunAdminRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.RunAdminRoleId]); err != nil {
-			mlog.Critical("Failed to create new run admin role to database.", mlog.Err(err))
+			mlog.Fatal("Failed to create new run admin role to database.", mlog.Err(err))
 			allSucceeded = false
 		}
 	}
 	if _, err := s.Store().Role().GetByName(context.Background(), model.RunMemberRoleId); err != nil {
 		if _, err := s.Store().Role().Save(roles[model.RunMemberRoleId]); err != nil {
-			mlog.Critical("Failed to create new run member role to database.", mlog.Err(err))
+			mlog.Fatal("Failed to create new run member role to database.", mlog.Err(err))
 			allSucceeded = false
 		}
 	}
 	schemes, err := s.Store().Scheme().GetAllPage(model.SchemeScopeTeam, 0, 1000000)
 	if err != nil {
-		mlog.Critical("Failed to get all schemes.", mlog.Err(err))
+		mlog.Fatal("Failed to get all schemes.", mlog.Err(err))
 		allSucceeded = false
 	}
 
@@ -391,7 +391,7 @@ func (s *Server) doPlaybooksRolesCreationMigration() {
 				}
 
 				if savedRole, err := s.Store().Role().Save(playbookAdminRole); err != nil {
-					mlog.Critical("Failed to create new playbook admin role for existing custom scheme.", mlog.Err(err))
+					mlog.Fatal("Failed to create new playbook admin role for existing custom scheme.", mlog.Err(err))
 					allSucceeded = false
 				} else {
 					scheme.DefaultPlaybookAdminRole = savedRole.Name
@@ -406,7 +406,7 @@ func (s *Server) doPlaybooksRolesCreationMigration() {
 				}
 
 				if savedRole, err := s.Store().Role().Save(playbookMember); err != nil {
-					mlog.Critical("Failed to create new playbook member role for existing custom scheme.", mlog.Err(err))
+					mlog.Fatal("Failed to create new playbook member role for existing custom scheme.", mlog.Err(err))
 					allSucceeded = false
 				} else {
 					scheme.DefaultPlaybookMemberRole = savedRole.Name
@@ -422,7 +422,7 @@ func (s *Server) doPlaybooksRolesCreationMigration() {
 				}
 
 				if savedRole, err := s.Store().Role().Save(runAdminRole); err != nil {
-					mlog.Critical("Failed to create new run admin role for existing custom scheme.", mlog.Err(err))
+					mlog.Fatal("Failed to create new run admin role for existing custom scheme.", mlog.Err(err))
 					allSucceeded = false
 				} else {
 					scheme.DefaultRunAdminRole = savedRole.Name
@@ -438,7 +438,7 @@ func (s *Server) doPlaybooksRolesCreationMigration() {
 				}
 
 				if savedRole, err := s.Store().Role().Save(runMemberRole); err != nil {
-					mlog.Critical("Failed to create new run member role for existing custom scheme.", mlog.Err(err))
+					mlog.Fatal("Failed to create new run member role for existing custom scheme.", mlog.Err(err))
 					allSucceeded = false
 				} else {
 					scheme.DefaultRunMemberRole = savedRole.Name
@@ -446,7 +446,7 @@ func (s *Server) doPlaybooksRolesCreationMigration() {
 			}
 			_, err := s.Store().Scheme().Save(scheme)
 			if err != nil {
-				mlog.Critical("Failed to update custom scheme.", mlog.Err(err))
+				mlog.Fatal("Failed to update custom scheme.", mlog.Err(err))
 				allSucceeded = false
 			}
 		}
@@ -462,7 +462,7 @@ func (s *Server) doPlaybooksRolesCreationMigration() {
 	}
 
 	if err := s.Store().System().Save(&system); err != nil {
-		mlog.Critical("Failed to mark playbook roles creation migration as completed.", mlog.Err(err))
+		mlog.Fatal("Failed to mark playbook roles creation migration as completed.", mlog.Err(err))
 	}
 
 }
@@ -507,7 +507,7 @@ func (s *Server) doFirstAdminSetupCompleteMigration() {
 	}
 
 	if err := s.Store().System().Save(&system); err != nil {
-		mlog.Critical("Failed to mark first admin setup migration as completed.", mlog.Err(err))
+		mlog.Fatal("Failed to mark first admin setup migration as completed.", mlog.Err(err))
 	}
 }
 
@@ -534,7 +534,7 @@ func (s *Server) doRemainingSchemaMigrations() {
 	}
 
 	if err := s.Store().System().Save(&system); err != nil {
-		mlog.Critical("Failed to mark the remaining schema migrations as completed.", mlog.Err(err))
+		mlog.Fatal("Failed to mark the remaining schema migrations as completed.", mlog.Err(err))
 	}
 }
 
@@ -552,7 +552,7 @@ func (s *Server) doAppMigrations() {
 	// migrations. For example, it needs the guest roles migration.
 	err := s.doPermissionsMigrations()
 	if err != nil {
-		mlog.Critical("(app.App).DoPermissionsMigrations failed", mlog.Err(err))
+		mlog.Fatal("(app.App).DoPermissionsMigrations failed", mlog.Err(err))
 	}
 	s.doContentExtractionConfigDefaultTrueMigration()
 	s.doPlaybooksRolesCreationMigration()
diff --git a/app/platform/metrics.go b/app/platform/metrics.go
index 2253594011..f30edb5093 100644
--- a/app/platform/metrics.go
+++ b/app/platform/metrics.go
@@ -111,7 +111,7 @@ func (pm *platformMetrics) startMetricsServer() error {
 	go func() {
 		close(notify)
 		if err := pm.server.Serve(l); err != nil && err != http.ErrServerClosed {
-			pm.logger.Critical(err.Error())
+			pm.logger.Fatal(err.Error())
 		}
 	}()
 
diff --git a/app/server.go b/app/server.go
index fbd433a6db..dc66353ee4 100644
--- a/app/server.go
+++ b/app/server.go
@@ -1059,7 +1059,7 @@ func (s *Server) Start() error {
 		}
 
 		if err != nil && err != http.ErrServerClosed {
-			mlog.Critical("Error starting server", mlog.Err(err))
+			mlog.Fatal("Error starting server", mlog.Err(err))
 			time.Sleep(time.Second)
 		}
 
@@ -1068,7 +1068,7 @@ func (s *Server) Start() error {
 
 	if *s.platform.Config().ServiceSettings.EnableLocalMode {
 		if err := s.startLocalModeServer(); err != nil {
-			mlog.Critical(err.Error())
+			mlog.Fatal(err.Error())
 		}
 	}
 
@@ -1100,7 +1100,7 @@ func (s *Server) startLocalModeServer() error {
 	go func() {
 		err = s.localModeServer.Serve(unixListener)
 		if err != nil && err != http.ErrServerClosed {
-			mlog.Critical("Error starting unix socket server", mlog.Err(err))
+			mlog.Fatal("Error starting unix socket server", mlog.Err(err))
 		}
 	}()
 	return nil
diff --git a/services/upgrader/upgrader_linux.go b/services/upgrader/upgrader_linux.go
index 1f895480ea..04ad1bcf82 100644
--- a/services/upgrader/upgrader_linux.go
+++ b/services/upgrader/upgrader_linux.go
@@ -333,7 +333,7 @@ func extractBinary(executablePath string, filename string) error {
 			if err != nil {
 				err2 := os.Rename(tmpFileName, executablePath)
 				if err2 != nil {
-					mlog.Critical("Unable to restore the backup of the executable file. Restore the executable file manually.")
+					mlog.Fatal("Unable to restore the backup of the executable file. Restore the executable file manually.")
 					return errors.Wrap(err2, "critical error: unable to upgrade the binary or restore the old binary version. Please restore it manually")
 				}
 				return err
@@ -342,13 +342,13 @@ func extractBinary(executablePath string, filename string) error {
 			if _, err = io.Copy(outFile, tarReader); err != nil {
 				err2 := os.Remove(executablePath)
 				if err2 != nil {
-					mlog.Critical("Unable to restore the backup of the executable file. Restore the executable file manually.")
+					mlog.Fatal("Unable to restore the backup of the executable file. Restore the executable file manually.")
 					return errors.Wrap(err2, "critical error: unable to upgrade the binary or restore the old binary version. Please restore it manually")
 				}
 
 				err2 = os.Rename(tmpFileName, executablePath)
 				if err2 != nil {
-					mlog.Critical("Unable to restore the backup of the executable file. Restore the executable file manually.")
+					mlog.Fatal("Unable to restore the backup of the executable file. Restore the executable file manually.")
 					return errors.Wrap(err2, "critical error: unable to upgrade the binary or restore the old binary version. Please restore it manually")
 				}
 				return err
diff --git a/shared/mlog/global.go b/shared/mlog/global.go
index de346123aa..71d7430a42 100644
--- a/shared/mlog/global.go
+++ b/shared/mlog/global.go
@@ -113,13 +113,10 @@ func Error(msg string, fields ...Field) {
 
 // Convenience method equivalent to calling `Log` with the `Critical` level.
 // DEPRECATED: Either use Error or Fatal.
+// Critical level isn't added in mlog/levels.go:StdAll so calling this doesn't
+// really work. For now we just call Fatal to atleast print something.
 func Critical(msg string, fields ...Field) {
-	logger := getGlobalLogger()
-	if logger == nil {
-		defaultLog(LvlCritical, msg, fields...)
-		return
-	}
-	logger.Critical(msg, fields...)
+	Fatal(msg, fields...)
 }
 
 func Fatal(msg string, fields ...Field) {
diff --git a/shared/mlog/global_test.go b/shared/mlog/global_test.go
index d97b3b15a3..486387e5f6 100644
--- a/shared/mlog/global_test.go
+++ b/shared/mlog/global_test.go
@@ -24,7 +24,6 @@ func TestLoggingBeforeInitialized(t *testing.T) {
 		mlog.Debug("debug log")
 		mlog.Warn("warning log")
 		mlog.Error("error log")
-		mlog.Critical("critical log")
 	})
 }
 
@@ -40,14 +39,13 @@ func TestLoggingAfterInitialized(t *testing.T) {
 				Type:          "file",
 				Format:        "json",
 				FormatOptions: json.RawMessage(`{"enable_caller":true}`),
-				Levels:        []mlog.Level{mlog.LvlCritical, mlog.LvlError, mlog.LvlWarn, mlog.LvlInfo, mlog.LvlDebug},
+				Levels:        []mlog.Level{mlog.LvlError, mlog.LvlWarn, mlog.LvlInfo, mlog.LvlDebug},
 			},
 			[]string{
 				`{"timestamp":0,"level":"debug","msg":"real debug log","caller":"mlog/global_test.go:0"}`,
 				`{"timestamp":0,"level":"info","msg":"real info log","caller":"mlog/global_test.go:0"}`,
 				`{"timestamp":0,"level":"warn","msg":"real warning log","caller":"mlog/global_test.go:0"}`,
 				`{"timestamp":0,"level":"error","msg":"real error log","caller":"mlog/global_test.go:0"}`,
-				`{"timestamp":0,"level":"critical","msg":"real critical log","caller":"mlog/global_test.go:0"}`,
 			},
 		},
 		{
@@ -56,11 +54,10 @@ func TestLoggingAfterInitialized(t *testing.T) {
 				Type:          "file",
 				Format:        "json",
 				FormatOptions: json.RawMessage(`{"enable_caller":true}`),
-				Levels:        []mlog.Level{mlog.LvlCritical, mlog.LvlError},
+				Levels:        []mlog.Level{mlog.LvlError},
 			},
 			[]string{
 				`{"timestamp":0,"level":"error","msg":"real error log","caller":"mlog/global_test.go:0"}`,
-				`{"timestamp":0,"level":"critical","msg":"real critical log","caller":"mlog/global_test.go:0"}`,
 			},
 		},
 		{
@@ -69,14 +66,13 @@ func TestLoggingAfterInitialized(t *testing.T) {
 				Type:          "file",
 				Format:        "plain",
 				FormatOptions: json.RawMessage(`{"delim":" | ", "enable_caller":true}`),
-				Levels:        []mlog.Level{mlog.LvlCritical, mlog.LvlError, mlog.LvlWarn, mlog.LvlInfo, mlog.LvlDebug},
+				Levels:        []mlog.Level{mlog.LvlError, mlog.LvlWarn, mlog.LvlInfo, mlog.LvlDebug},
 			},
 			[]string{
 				`debug | TIME | real debug log | caller="mlog/global_test.go:0"`,
 				`info | TIME | real info log | caller="mlog/global_test.go:0"`,
 				`warn | TIME | real warning log | caller="mlog/global_test.go:0"`,
 				`error | TIME | real error log | caller="mlog/global_test.go:0"`,
-				`critical | TIME | real critical log | caller="mlog/global_test.go:0"`,
 			},
 		},
 		{
@@ -85,11 +81,10 @@ func TestLoggingAfterInitialized(t *testing.T) {
 				Type:          "file",
 				Format:        "plain",
 				FormatOptions: json.RawMessage(`{"delim":" | ", "enable_caller":true}`),
-				Levels:        []mlog.Level{mlog.LvlCritical, mlog.LvlError},
+				Levels:        []mlog.Level{mlog.LvlError},
 			},
 			[]string{
 				`error | TIME | real error log | caller="mlog/global_test.go:0"`,
-				`critical | TIME | real critical log | caller="mlog/global_test.go:0"`,
 			},
 		},
 	}
@@ -116,7 +111,6 @@ func TestLoggingAfterInitialized(t *testing.T) {
 			mlog.Info("real info log")
 			mlog.Warn("real warning log")
 			mlog.Error("real error log")
-			mlog.Critical("real critical log")
 
 			logger.Shutdown()