diff --git a/includes/menu.inc b/includes/menu.inc
index 0cb9d23..8cedecb 100644
--- a/includes/menu.inc
+++ b/includes/menu.inc
@@ -3816,7 +3816,7 @@ function _menu_router_save($menu, $masks) {
       'theme_callback' => $item['theme callback'],
       'theme_arguments' => serialize($item['theme arguments']),
       'type' => $item['type'],
-      'description' => $item['description'],
+      'description' => empty($item['description']) ? '' : $item['description'],
       'position' => $item['position'],
       'weight' => $item['weight'],
       'include_file' => $item['include file'],