diff --git a/menu_trail_by_path.module b/menu_trail_by_path.module
index b24a24c..8feeb3c 100644
--- a/menu_trail_by_path.module
+++ b/menu_trail_by_path.module
@@ -132,7 +132,7 @@ function menu_trail_by_path_form($form, &$form_state) {
  */
 function _menu_trail_by_path_get_parent_candidates($path = NULL) {
   if (!isset($path)) {
-    $path = request_path();
+    $path = drupal_get_path_alias();
   }
   $pieces = explode('/', $path);
   $path = '';