diff --git a/src/Fetch/Attachment.php b/src/Fetch/Attachment.php
index e77984a..f9e2e6a 100644
--- a/src/Fetch/Attachment.php
+++ b/src/Fetch/Attachment.php
@@ -232,7 +232,7 @@ public function saveAs($path)
         return $result;
     }
 
-    protected function setFileName($text)
+    public function setFileName($text)
     {
         $this->filename = MIME::decode($text, Message::$charset);
     }