diff --git a/wp-admin/async-upload.php b/wp-admin/async-upload.php
index 04b0df9597..5586710a4c 100644
--- a/wp-admin/async-upload.php
+++ b/wp-admin/async-upload.php
@@ -5,6 +5,8 @@
  * @package WordPress
  * @subpackage Administration
  */
+ 
+define('WP_ADMIN', true); 
 
 if ( defined('ABSPATH') )
 	require_once(ABSPATH . 'wp-load.php');