From 7e7ca06bffe8c473181c73f86b57031cf50857d8 Mon Sep 17 00:00:00 2001
From: Piotr Antosik <mail@piotrantosik.com>
Date: Fri, 6 Feb 2015 14:36:19 +0100
Subject: [PATCH] add typehint

---
 cookbook/form/dynamic_form_modification.rst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cookbook/form/dynamic_form_modification.rst b/cookbook/form/dynamic_form_modification.rst
index 92d7521f4e4..6124d9b6f24 100644
--- a/cookbook/form/dynamic_form_modification.rst
+++ b/cookbook/form/dynamic_form_modification.rst
@@ -721,10 +721,11 @@ all of this, use a listener::
 
     use Symfony\Component\Form\FormBuilderInterface;
     use Symfony\Component\Form\FormEvents;
+    use Symfony\Component\Form\FormEvent;
 
     public function buildForm(FormBuilderInterface $builder, array $options)
     {
-        $builder->addEventListener(FormEvents::POST_SUBMIT, function ($event) {
+        $builder->addEventListener(FormEvents::POST_SUBMIT, function (FormEvent $event) {
             $event->stopPropagation();
         }, 900); // Always set a higher priority than ValidationListener