diff --git a/server/cron_debug.php b/server/cron_debug.php
index 615a56d7434b64912d6b114874d20164db0a7117..2ab9289d2675450e021730020e6aa0bfd598f6fd 100644
--- a/server/cron_debug.php
+++ b/server/cron_debug.php
@@ -39,7 +39,7 @@ ini_set('error_reporting', E_ALL & ~E_NOTICE);
 $conf['server_id'] = intval($conf['server_id']);
 
 // Load required base-classes
-$app->uses('ini_parser,file,services,getconf,system,cron,functions');
+$app->uses('modules,ini_parser,file,services,getconf,system,cron,functions');
 $app->load('libdatetime,cronjob');
 
 // Path settings