diff --git a/server/cron.php b/server/cron.php
index ba59ff404927421b7743c85ab757fb98e26ecaaa..5e66f51a96223fd8a4489062269d6b4bd7779784 100644
--- a/server/cron.php
+++ b/server/cron.php
@@ -69,7 +69,7 @@ $conf['server_id'] = intval($conf['server_id']);
 
 
 // Load required base-classes
-$app->uses('modules,ini_parser,file,services,getconf,system,cron,functions');
+$app->uses('modules,ini_parser,file,services,getconf,system,cron,functions,plugins');
 $app->load('libdatetime,cronjob');
 
 // read all cron jobs