diff --git a/modules/catalog/api/Catalog.php b/modules/catalog/api/Catalog.php
index d83eca8..43295d9 100644
--- a/modules/catalog/api/Catalog.php
+++ b/modules/catalog/api/Catalog.php
@@ -31,6 +31,7 @@ class Catalog extends \yii\easyii\components\API
     private $_items;
     private $_adp;
     private $_item = [];
+    private $_last;
 
     public function api_cat($id_slug)
     {