diff --git a/migrations/06_add_moderator_role.php b/migrations/06_add_moderator_role.php
index 45f7ce937d293d5d7f96faafc5adc935111c6b2f..d7b10cb03d61838cab6c171095b37c615c02359d 100755
--- a/migrations/06_add_moderator_role.php
+++ b/migrations/06_add_moderator_role.php
@@ -9,6 +9,7 @@ class AddModeratorRole extends Migration {
             VALUES
                 ('Pluginbeauftragter', 'n');
         ");
+        StudipCacheFactory::getCache()->expire('plugins/rolepersistence/roles');
     }
 
     public function down() {