--- includes/views/views_handler_field_nodehierarchy_parent.inc	2010-12-22 00:26:57.000000000 +0100
+++ includes/views/views_handler_field_nodehierarchy_parent.inc	2010-12-22 00:29:05.000000000 +0100
@@ -32,6 +32,8 @@ class views_handler_field_nodehierarchy_
    * Provide link-to-comment option.
    */
   function options_form(&$form, &$form_state) {
+    parent::options_form($form,$form_state);
+
     $form['display_as'] = array(
       '#title' => t('Display this field as'),
       '#type' => 'select',