diff --git a/lib/cronjobs/garbage_collector.class.php b/lib/cronjobs/garbage_collector.class.php
index e426cf33b9b6cde129519d390add4f4593cf3e14..bab44b287e7989c565dc33728a2c6569318644c9 100644
--- a/lib/cronjobs/garbage_collector.class.php
+++ b/lib/cronjobs/garbage_collector.class.php
@@ -162,7 +162,7 @@ class GarbageCollectorJob extends CronJob
         ]);
 
         // clean db cache
-        $cache = new StudipDbCache();
+        $cache = new Studip\Cache\DbCache();
         $cache->purge();
 
         // Remove old plugin assets