diff --git a/utils/delete.php b/utils/delete.php
index d054ff09b..b272c2fcb 100644
--- a/utils/delete.php
+++ b/utils/delete.php
@@ -99,7 +99,6 @@ include($myincpath."/inc/inc.Language.php");
 include($myincpath."/inc/inc.Init.php");
 include($myincpath."/inc/inc.Extension.php");
 include($myincpath."/inc/inc.DBInit.php");
-include($myincpath."/inc/inc.ClassNotificationService.php");
 include($myincpath."/inc/inc.Notification.php");
 include($myincpath."/inc/inc.ClassController.php");