diff --git a/db/migrations/113_init_mailqueue.php b/db/migrations/113_init_mailqueue.php
index 10708fa49e57ffa5a5c5e498544594c0c7c6c743..6c0349e9d20c7210173ae5a020454e68f17a3c55 100644
--- a/db/migrations/113_init_mailqueue.php
+++ b/db/migrations/113_init_mailqueue.php
@@ -82,8 +82,6 @@ class InitMailqueue extends Migration
 
     function down()
     {
-        DBManager::get()->query("DROP TABLE IF EXISTS `cronjobs_tasks`, `cronjobs_schedules`, `cronjobs_logs`");
-
-        DBManager::get()->query("DELETE FROM config WHERE field IN ('CRONJOB_ENABLE', 'CRONJOBS_ESCALATION')");
+        throw new RuntimeException('down() is not implemented for this migration');
     }
 }