diff --git a/modules/fieldgroup/fieldgroup.module b/modules/fieldgroup/fieldgroup.module
index 6b5b170..23c4f55 100644
--- a/modules/fieldgroup/fieldgroup.module
+++ b/modules/fieldgroup/fieldgroup.module
@@ -438,7 +438,7 @@ function fieldgroup_field_overview_form_validate($form, &$form_state) {
     // to get weights the user doesn't expect.
 
     foreach ($form_values as $key => $values) {
-      if ($values['parent'] == '_add_new_group') {
+      if (isset($values['parent']) && $values['parent'] == '_add_new_group') {
         form_set_error('_add_new_group][label', t('Add new group: you need to provide a label.'));
         form_set_error('_add_new_group][group_name', t('Add new group: you need to provide a group name.'));
         break;