diff --git a/modules/adfs/www/idp/prp.php b/modules/adfs/www/idp/prp.php
index 4cec12fedd8ae61a2fb36755645dd32060c53ca9..c184fda1f35106de507bcf4a7e48b6678413e445 100644
--- a/modules/adfs/www/idp/prp.php
+++ b/modules/adfs/www/idp/prp.php
@@ -178,7 +178,7 @@ if (!$session->isValid($authority) ) {
 
 	if($authSource) {
 
-		SimpleSAML_Auth_Default::initLogin($adfsconfig->getValue('auth'), $redirectTo, NULL, NULL);
+		SimpleSAML_Auth_Default::initLogin($adfsconfig->getValue('auth'), $redirectTo);
 	} else {
 		$authurl = '/' . $config->getBaseURL() . $adfsconfig->getValue('auth');