diff --git a/wp-admin/js/link.js b/wp-admin/js/link.js
index 40c7fb9572..206d7dd816 100644
--- a/wp-admin/js/link.js
+++ b/wp-admin/js/link.js
@@ -34,6 +34,7 @@ addLoadEvent( function() {
 	};
 	jQuery('#categorychecklist').wpList( {
 		alt: '',
+		what: 'link-category',
 		response: 'category-ajax-response',
 		addAfter: catAddAfter
 	} );