diff --git a/lib/Serendipity/Routing.php b/lib/Serendipity/Routing.php
index d5690ef4..b72413bb 100644
--- a/lib/Serendipity/Routing.php
+++ b/lib/Serendipity/Routing.php
@@ -7,6 +7,8 @@ namespace Serendipity;
 
 class Routing
 {
+    protected $serendipity;
+
     public function __construct(&$serendipity)
     {
         $this->serendipity =& $serendipity;