Index: wp-admin/load-scripts.php
===================================================================
--- wp-admin/load-scripts.php	(revision 19592)
+++ wp-admin/load-scripts.php	(working copy)
@@ -109,6 +109,7 @@
 if ( empty($load) )
 	exit;
 
+require(ABSPATH . WPINC . '/compat.php');
 require(ABSPATH . WPINC . '/script-loader.php');
 require(ABSPATH . WPINC . '/version.php');