diff --git a/resources/classes/permissions.php b/resources/classes/permissions.php
index 68ce58f309..c66a0d96dd 100644
--- a/resources/classes/permissions.php
+++ b/resources/classes/permissions.php
@@ -198,7 +198,7 @@ if (!class_exists('permissions')) {
 		/**
 		 * Returns a new permission object
 		 */
-		public static function new($database, $domain_uuid, $user_uuid) {
+		public static function new($database = null, $domain_uuid = null, $user_uuid = null) {
 			if (self::$permission === null) {
 				self::$permission = new permissions($database, $domain_uuid, $user_uuid);
 			}