diff --git a/includes/form.inc b/includes/form.inc
index 14cf618..ff0edf0 100644
--- a/includes/form.inc
+++ b/includes/form.inc
@@ -702,7 +702,7 @@ function drupal_retrieve_form($form_id, &$form_state) {
   // the form builder callbacks can be loaded when the form is being rebuilt
   // from cache on a different path (such as 'system/ajax'). See
   // form_get_cache().
-  // $menu_get_item() is not available at installation time.
+  // menu_get_item() is not available at installation time.
   if (!isset($form_state['build_info']['files']['menu']) && !defined('MAINTENANCE_MODE')) {
     $item = menu_get_item();
     if (!empty($item['include_file'])) {