diff --git a/Form/AccompanyingPeriodType.php b/Form/AccompanyingPeriodType.php
index 4ccdef6ce..0d5967f1b 100644
--- a/Form/AccompanyingPeriodType.php
+++ b/Form/AccompanyingPeriodType.php
@@ -69,9 +69,9 @@ class AccompanyingPeriodType extends AbstractType
 
         $resolver
             ->setRequired(array('period_action'))
-            ->addAllowedTypes(array('period_action' => 'string'))
-            ->addAllowedValues(array('period_action' => array(
-                'update', 'open', 'close', 'create')));
+            ->addAllowedTypes('period_action','string')
+            ->addAllowedValues('period_action', array(
+                'update', 'open', 'close', 'create'));
     }
 
     public function buildView(FormView $view, FormInterface $form, array $options)