diff --git a/admin/comments.php b/admin/comments.php
index 2666cc27b..0f09faf9f 100644
--- a/admin/comments.php
+++ b/admin/comments.php
@@ -98,6 +98,8 @@ $template->assign(
 
 include_once(PHPWG_ROOT_PATH.'admin/include/tabsheet.class.php');
 
+$my_base_url = get_root_url().'admin.php?page=';
+
 $tabsheet = new tabsheet();
 $tabsheet->set_id('comments');
 $tabsheet->select('');
diff --git a/admin/include/add_core_tabs.inc.php b/admin/include/add_core_tabs.inc.php
index 3b0c70118..28cf1ce9e 100644
--- a/admin/include/add_core_tabs.inc.php
+++ b/admin/include/add_core_tabs.inc.php
@@ -59,15 +59,18 @@ function add_core_tabs($sheets, $tab_id)
       break;
 
     case 'comments':
-      $sheets[''] = array('caption' => l10n('User comments'), 'url' => '');
+      global $my_base_url;
+      $sheets[''] = array('caption' => l10n('User comments'), 'url' => $my_base_url.'comments');
       break;
 
     case 'users':
-      $sheets[''] = array('caption' => '<span class="icon-users"> </span>'.l10n('User list'), 'url' => '');
+      global $my_base_url;
+      $sheets[''] = array('caption' => '<span class="icon-users"> </span>'.l10n('User list'), 'url' => $my_base_url.'user_list');
       break;
 
     case 'groups':
-      $sheets[''] = array('caption' => '<span class="icon-group"> </span>'.l10n('Groups'), 'url' => '');
+      global $my_base_url;
+      $sheets[''] = array('caption' => '<span class="icon-group"> </span>'.l10n('Groups'), 'url' => $my_base_url.'group_list');
       break;
 
     case 'configuration':