diff --git a/json.php b/json.php
index a656cd118d..28736362dd 100644
--- a/json.php
+++ b/json.php
@@ -64,7 +64,7 @@ function ajax_exception_handler(Exception $e)
 }
 
 // set our own exception handler, to not get the html from eGW's default one
-//set_exception_handler('ajax_exception_handler');
+set_exception_handler('ajax_exception_handler');
 
 if (isset($_GET['menuaction']))
 {