diff --git a/Form/Doctrine/Type/AjaxEntityType.php b/Form/Doctrine/Type/AjaxEntityType.php
index d0ee351f..aa308c99 100644
--- a/Form/Doctrine/Type/AjaxEntityType.php
+++ b/Form/Doctrine/Type/AjaxEntityType.php
@@ -49,7 +49,7 @@ public function getDefaultOptions(array $options)
             'class'         => null,
             'property'      => null,
             'query_builder' => null,
-            'choices'       => array(),
+            'choices'       => null,
             'ajax'          => false
         );