diff --git a/app/templates/user/register.twig b/app/templates/user/register.twig
index 7d32891..fe806ab 100644
--- a/app/templates/user/register.twig
+++ b/app/templates/user/register.twig
@@ -7,7 +7,7 @@
 {% block content %}
 <div>
     <form action="/register" method="post" id="login-form">
-        <input name="form_key" type="hidden" value="{{ form_key }}">
+        <input name="form_key" type="hidden" value="{{ session.get('form_key') }}">
         <div>
             <label for="name">Name<br>
             <input name="name" type="text" required>