diff --git a/nagios/univention-nagios/usr/lib/nagios/plugins/check_univention_replication b/nagios/univention-nagios/usr/lib/nagios/plugins/check_univention_replication
index 92fa4fd04d..e0a43170db 100755
--- a/nagios/univention-nagios/usr/lib/nagios/plugins/check_univention_replication
+++ b/nagios/univention-nagios/usr/lib/nagios/plugins/check_univention_replication
@@ -166,6 +166,8 @@ class ReplicationCheck:
 
 		if notifier_id == listener_id:
 			self.exit_with_status('OK', 'replication complete', notifier_id, listener_id)
+		if notifier_id < listener_id:
+			self.exit_with_status('CRITICAL', 'Replication-ID rollback on Master', notifier_id, listener_id)
 		else:
 			# check if listener id changed during last checks
 			change = 0