diff --git a/forms.rst b/forms.rst
index 7e5a91bd4b0..550222f7099 100644
--- a/forms.rst
+++ b/forms.rst
@@ -639,6 +639,7 @@ the choice is ultimately up to you.
     good idea to explicitly specify the ``data_class`` option by adding the
     following to your form type class::
 
+        // src/AppBundle/Form/TaskType.php
         use AppBundle\Entity\Task;
         use Symfony\Component\OptionsResolver\OptionsResolver;