--- service_links/service_links.module	2008-02-26 12:01:27.000000000 -0500
+++ service_links/service_links.module	2009-10-02 06:33:21.000000000 -0400
@@ -35,11 +35,12 @@ function service_links_admin_settings() 
     '#title' => t('Where to show the service links'),
     '#description' => t('Set the node types and categories you want to display links for.'),
   );
+  $names = array_map('filter_xss', node_get_types('names'));
   $form['where_to_show_the_links']['service_links_node_types'] = array(
     '#type' => 'checkboxes',
     '#title' => t('Node types'),
     '#default_value' => variable_get('service_links_node_types', array()),
-    '#options' => node_get_types('names'),
+    '#options' => $names,
   );
   if (module_exists('taxonomy')) {
     $form['where_to_show_the_links']['service_links_category_types'] = array(