diff --git a/form/create_custom_field_type.rst b/form/create_custom_field_type.rst
index fe9633084a1..0a39902c3d9 100644
--- a/form/create_custom_field_type.rst
+++ b/form/create_custom_field_type.rst
@@ -36,7 +36,6 @@ for form fields, which is ``<BundleName>\Form\Type``. Make sure the field extend
                     'Expedited Shipping' => 'expedited',
                     'Priority Shipping' => 'priority',
                 ),
-                'choices_as_values' => true,
             ));
         }