diff --git a/app/notification.go b/app/notification.go
index 6167633a5c..d1712b85d8 100644
--- a/app/notification.go
+++ b/app/notification.go
@@ -740,6 +740,10 @@ func (a *App) allowChannelMentions(post *model.Post, numProfiles int) bool {
 
 // allowGroupMentions returns whether or not the group mentions are allowed for the given post.
 func (a *App) allowGroupMentions(post *model.Post) bool {
+	if license := a.License(); license == nil || !*license.Features.LDAPGroups {
+		return false
+	}
+
 	if !a.HasPermissionToChannel(post.UserId, post.ChannelId, model.PERMISSION_USE_GROUP_MENTIONS) {
 		return false
 	}
diff --git a/app/notification_test.go b/app/notification_test.go
index 43d37e8bbe..03bae9bc75 100644
--- a/app/notification_test.go
+++ b/app/notification_test.go
@@ -999,6 +999,13 @@ func TestAllowGroupMentions(t *testing.T) {
 
 	post := &model.Post{ChannelId: th.BasicChannel.Id, UserId: th.BasicUser.Id}
 
+	t.Run("should return false without ldap groups license", func(t *testing.T) {
+		allowGroupMentions := th.App.allowGroupMentions(post)
+		assert.False(t, allowGroupMentions)
+	})
+
+	th.App.SetLicense(model.NewTestLicense("ldap_groups"))
+
 	t.Run("should return true for a regular post with few channel members", func(t *testing.T) {
 		allowGroupMentions := th.App.allowGroupMentions(post)
 		assert.True(t, allowGroupMentions)