diff --git a/models/ArticleAttachment.php b/models/ArticleAttachment.php
index 50416c8..ab8f771 100644
--- a/models/ArticleAttachment.php
+++ b/models/ArticleAttachment.php
@@ -80,6 +80,6 @@ public function getArticle()
 
     public function getUrl()
     {
-        return $this->base_url .'/'. $this->path;
+        return Yii::getAlias('@storageUrl') . '/source/' . $this->path;
     }
 }