diff --git a/hosts/vm/mediakiwi/category-lockdown.patch b/hosts/vm/mediakiwi/category-lockdown.patch
index 37de940..a573c79 100644
--- a/hosts/vm/mediakiwi/category-lockdown.patch
+++ b/hosts/vm/mediakiwi/category-lockdown.patch
@@ -1,8 +1,8 @@
 diff --git a/CategoryLockdown.php b/CategoryLockdown.php
-index 1e17ec7..8108615 100644
+index 1e17ec7..b884553 100644
 --- a/CategoryLockdown.php
 +++ b/CategoryLockdown.php
-@@ -16,6 +16,8 @@ class CategoryLockdown {
+@@ -16,16 +16,23 @@ class CategoryLockdown {
  	 */
  	public static function onGetUserPermissionsErrors( $title, $user, $action, &$result ) {
  		global $wgCategoryLockdown;
@@ -11,7 +11,11 @@ index 1e17ec7..8108615 100644
  
  		$explicitGroups = MediaWikiServices::getInstance()->getUserGroupManager()->getUserGroups( $user );
  		$implicitGroups = MediaWikiServices::getInstance()->getUserGroupManager()->getUserImplicitGroups( $user );
-@@ -26,6 +28,11 @@ class CategoryLockdown {
+-		$userGroups = $explicitGroups + $implicitGroups;
++		$userGroups = array_merge( $explicitGroups, $implicitGroups );
+ 
+ 		// Rules don't apply to admins
+ 		if ( in_array( 'sysop', $userGroups ) ) {
  			return;
  		}