diff --git a/config/default.json b/config/default.json
index b303365b52..96993a9a99 100644
--- a/config/default.json
+++ b/config/default.json
@@ -131,7 +131,7 @@
         "Trace": false,
         "AtRestEncryptKey": "",
         "QueryTimeout": 30,
-        "EnablePublicChannelsMaterialization": true
+        "EnablePublicChannelsMaterialization": false
     },
     "LogSettings": {
         "EnableConsole": true,
diff --git a/model/config.go b/model/config.go
index db30301702..7aef548edf 100644
--- a/model/config.go
+++ b/model/config.go
@@ -687,7 +687,7 @@ func (s *SqlSettings) SetDefaults() {
 	}
 
 	if s.EnablePublicChannelsMaterialization == nil {
-		s.EnablePublicChannelsMaterialization = NewBool(true)
+		s.EnablePublicChannelsMaterialization = NewBool(false)
 	}
 }