diff --git a/lib/plugins/sfDoctrinePlugin/lib/mailer/Swift_DoctrineSpool.class.php b/lib/plugins/sfDoctrinePlugin/lib/mailer/Swift_DoctrineSpool.class.php
index 8cf3f22ea..7f5be44ec 100644
--- a/lib/plugins/sfDoctrinePlugin/lib/mailer/Swift_DoctrineSpool.class.php
+++ b/lib/plugins/sfDoctrinePlugin/lib/mailer/Swift_DoctrineSpool.class.php
@@ -67,9 +67,9 @@ public function stop()
     /**
      * Stores a message in the queue.
      *
-     * @param Swift_Mime_Message $message The message to store
+     * @param Swift_Mime_SimpleMessage $message The message to store
      */
-    public function queueMessage(Swift_Mime_Message $message)
+    public function queueMessage(Swift_Mime_SimpleMessage $message)
     {
         $object = new $this->model();