diff --git a/modules/saml/www/debug.php b/modules/saml/www/debug.php
index 7c6b44cedaa18f79349abebd4756924bd875ced4..ad86d18cffc1e9387b01a18b63d06793d9d9c611 100644
--- a/modules/saml/www/debug.php
+++ b/modules/saml/www/debug.php
@@ -10,6 +10,8 @@
  * @version $Id$
  */
 
+SimpleSAML_Session::useTransientSession();
+
 $globalConfig = SimpleSAML_Configuration::getInstance();
 
 if (array_key_exists('SAMLRequest', $_REQUEST)) {