diff --git a/Form/UserType.php b/Form/UserType.php
index 5d82f6351..0b6df9994 100644
--- a/Form/UserType.php
+++ b/Form/UserType.php
@@ -48,7 +48,7 @@ class UserType extends AbstractType
 
         $resolver
                 ->setDefaults(array('is_creation' => false))
-                ->addAllowedValues(array('is_creation' => array(true, false)))
+                ->addAllowedValues('is_creation', array(true, false))
                 ;
     }