Index: site_map.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/site_map/site_map.module,v
retrieving revision 1.39.2.17.2.2
diff -u -r1.39.2.17.2.2 site_map.module
--- site_map.module	14 Oct 2009 20:35:25 -0000	1.39.2.17.2.2
+++ site_map.module	6 Dec 2009 12:18:04 -0000
@@ -91,6 +91,10 @@
  * Menu callback for the site map.
  */
 function site_map_page() {
+  // Append the site map item to the current breadcrumb.
+  $breadcrumb = array_merge(drupal_get_breadcrumb(), array(l(t('Site map'), 'sitemap')));
+  drupal_set_breadcrumb($breadcrumb);
+
   if (variable_get('site_map_css', 0) != 1) {
     drupal_add_css(drupal_get_path('module', 'site_map') .'/site_map.css');
   }