diff --git a/permission_select.module b/permission_select.module
--- a/permission_select.module
+++ b/permission_select.module
@@ -46,8 +46,8 @@ function permission_select_theme_user_admin_perm($variables) {
   foreach (element_children($form['permission']) as $key) {
     $row = array();
     // Module name
+    $mod_name = t($form['permission'][$key]['#id']);
     if (is_numeric($key)) {
-			$mod_name = t($form['permission'][$key]['#id']);
       $row[] = array('data' => drupal_render($form['permission'][$key]), 'class' => array('module module_name'), 'id' => 'module-' . $mod_name, 'colspan' => count($form['role_names']['#value']) + 1);
     }
     else {