diff --git a/app/call_forward/call_forward_edit.php b/app/call_forward/call_forward_edit.php
index a6e48e8f7c..c3916334fb 100644
--- a/app/call_forward/call_forward_edit.php
+++ b/app/call_forward/call_forward_edit.php
@@ -421,7 +421,6 @@
 
 		//synchronize configuration
 			if (!empty($_SESSION['switch']['extensions']['dir']) && is_readable($_SESSION['switch']['extensions']['dir'])) {
-				require_once "app/extensions/resources/classes/extension.php";
 				$ext = new extension;
 				$ext->xml();
 				unset($ext);