diff --git a/ext/artists/main.php b/ext/artists/main.php
index 9ea279ce..11fc59f4 100644
--- a/ext/artists/main.php
+++ b/ext/artists/main.php
@@ -32,7 +32,9 @@ class Artists extends Extension
 
     public function onInitExt(InitExtEvent $event): void
     {
+        global $config;
         Image::$prop_types["author"] = ImagePropType::STRING;
+        $config->set_default_int("artistsPerPage", 20);
     }
 
     public function onImageInfoSet(ImageInfoSetEvent $event): void
@@ -120,7 +122,6 @@ class Artists extends Extension
 					");
             $database->execute("ALTER TABLE images ADD COLUMN author VARCHAR(255) NULL");
 
-            $config->set_int("artistsPerPage", 20);
             $this->set_version("ext_artists_version", 1);
         }
     }
diff --git a/ext/forum/main.php b/ext/forum/main.php
index f2f4c31f..fb07560c 100644
--- a/ext/forum/main.php
+++ b/ext/forum/main.php
@@ -17,6 +17,15 @@ class Forum extends Extension
     /** @var ForumTheme */
     protected Themelet $theme;
 
+    public function onInitExt(InitExtEvent $event): void
+    {
+        global $config;
+        $config->set_default_int("forumTitleSubString", 25);
+        $config->set_default_int("forumThreadsPerPage", 15);
+        $config->set_default_int("forumPostsPerPage", 15);
+        $config->set_default_int("forumMaxCharsPerPost", 512);
+    }
+
     public function onDatabaseUpgrade(DatabaseUpgradeEvent $event): void
     {
         global $config, $database;
@@ -46,12 +55,6 @@ class Forum extends Extension
 					");
             $database->execute("CREATE INDEX forum_posts_date_idx ON forum_posts(date)", []);
 
-            $config->set_int("forumTitleSubString", 25);
-            $config->set_int("forumThreadsPerPage", 15);
-            $config->set_int("forumPostsPerPage", 15);
-
-            $config->set_int("forumMaxCharsPerPost", 512);
-
             $this->set_version("forum_version", 3);
         }
         if ($this->get_version("forum_version") < 2) {
diff --git a/ext/notes/main.php b/ext/notes/main.php
index e19ce22c..fe3c81b7 100644
--- a/ext/notes/main.php
+++ b/ext/notes/main.php
@@ -11,7 +11,11 @@ class Notes extends Extension
 
     public function onInitExt(InitExtEvent $event): void
     {
+        global $config;
         Image::$prop_types["notes"] = ImagePropType::INT;
+        $config->set_default_int("notesNotesPerPage", 20);
+        $config->set_default_int("notesRequestsPerPage", 20);
+        $config->set_default_int("notesHistoriesPerPage", 20);
     }
 
     public function onDatabaseUpgrade(DatabaseUpgradeEvent $event): void
@@ -67,10 +71,6 @@ class Notes extends Extension
 					");
             $database->execute("CREATE INDEX note_histories_image_id_idx ON note_histories(image_id)", []);
 
-            $config->set_int("notesNotesPerPage", 20);
-            $config->set_int("notesRequestsPerPage", 20);
-            $config->set_int("notesHistoriesPerPage", 20);
-
             $this->set_version("ext_notes_version", 1);
         }
     }