diff --git a/service_container.rst b/service_container.rst
index 90e642d6a97..93a1e7ea256 100644
--- a/service_container.rst
+++ b/service_container.rst
@@ -361,7 +361,7 @@ made. To do that, you create a new class::
                 );
             $this->mailer->send($message);
 
-            return $message;
+            return $happyMessage;
         }
     }