--- a/includes/lang.php	Mon Jul 06 11:26:21 2009 -0400
+++ b/includes/lang.php	Mon Jul 06 11:26:42 2009 -0400
@@ -630,6 +630,7 @@
       return false;
     }
     $this->filters[$filter_name] = $filter_function;
+    return true;
   }
   
   /**