diff --git a/app/code/Magento/Catalog/Model/ResourceModel/Product/Collection.php b/app/code/Magento/Catalog/Model/ResourceModel/Product/Collection.php
index 3239d3e1cba26..e1350ebb25c87 100644
--- a/app/code/Magento/Catalog/Model/ResourceModel/Product/Collection.php
+++ b/app/code/Magento/Catalog/Model/ResourceModel/Product/Collection.php
@@ -1595,6 +1595,8 @@ public function addAttributeToFilter($attribute, $condition = null, $joinType =
         } else {
             return parent::addAttributeToFilter($attribute, $condition, $joinType);
         }
+
+        return $this;
     }
 
     /**