diff --git a/src/BulkTools/HTTPBulkToolsResponse.php b/src/BulkTools/HTTPBulkToolsResponse.php
index 7a2ee3d..c6baf21 100644
--- a/src/BulkTools/HTTPBulkToolsResponse.php
+++ b/src/BulkTools/HTTPBulkToolsResponse.php
@@ -197,7 +197,7 @@ public function addSuccessRecord($record)
      */
     public function addSuccessRecords(SS_List $records)
     {
-        array_push($this->successRecords, $records->toArray());
+        $this->successRecords = array_merge($this->successRecords, $records->toArray());
         return $this;
     }