diff --git a/wp-includes/query.php b/wp-includes/query.php
index bd511182cb..dc56be47e9 100644
--- a/wp-includes/query.php
+++ b/wp-includes/query.php
@@ -2343,6 +2343,7 @@ class WP_Query {
 
 				switch ( $orderby ) {
 					case 'menu_order':
+						$orderby = "$wpdb->posts.menu_order";
 						break;
 					case 'ID':
 						$orderby = "$wpdb->posts.ID";