diff --git a/google_groups.admin.inc b/google_groups.admin.inc
index f969be7..9fe5576 100644
--- a/google_groups.admin.inc
+++ b/google_groups.admin.inc
@@ -52,7 +52,7 @@ function google_groups_list_page() {
   $form['google_groups_domain_name'] = array(
     '#type' => 'textfield',
     '#title' => t('Group domain'),
-    '#default_value' => variable_get('google_groups_domain_name', '')
+    '#default_value' => variable_get('google_groups_domain_name', ''),
     '#required' => TRUE,
     '#size' => 40,
     '#maxlength' => 64,