diff --git a/app/code/core/Mage/Sales/Model/Resource/Collection/Abstract.php b/app/code/core/Mage/Sales/Model/Resource/Collection/Abstract.php
index 4f2495f80c73f..f8f176d28016c 100755
--- a/app/code/core/Mage/Sales/Model/Resource/Collection/Abstract.php
+++ b/app/code/core/Mage/Sales/Model/Resource/Collection/Abstract.php
@@ -161,6 +161,6 @@ public function getAllIds($limit = null, $offset = null)
      */
     public function joinAttribute($alias, $attribute, $bind, $filter = null, $joinType = 'inner', $storeId = null)
     {
-        return $this;
+        throw new Exception('Not implemented.');
     }
 }