diff --git a/page-logic/validator.php b/page-logic/validator.php
index 744375a56f9244a092e0c7b6fc7908a78c41fbaa..7364eaf4bb2b6df58fad99a26fd2c42280b3220d 100644
--- a/page-logic/validator.php
+++ b/page-logic/validator.php
@@ -2,6 +2,7 @@
 require_once ("../lib/validatorClass.php");
 session_start();
 $v = new Validator();
+$data = '';
 if ($v->params['url'] && $v->params['auto'] && $v->params['xmlout']) {
     header('Content-Type: text/xml');
     list($schres, $printres) = $v->checkmetadata();