diff --git a/rating/rate_ajax.php b/rating/rate_ajax.php
index 5e1342f5e36..1c32c9df437 100644
--- a/rating/rate_ajax.php
+++ b/rating/rate_ajax.php
@@ -25,6 +25,8 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+define('AJAX_SCRIPT', true);
+
 require_once('../config.php');
 require_once('lib.php');