diff --git a/APPL/API/shorturl.asp b/APPL/API/shorturl.asp
index f38c015433..1124826ed0 100644
--- a/APPL/API/shorturl.asp
+++ b/APPL/API/shorturl.asp
@@ -18,6 +18,7 @@
                     Als je dat wilt moet je maar BOOKMARK's gebruiken
 */
     ANONYMOUS_Allowed = 1;
+    LOGIN_try = 1; // prevent auto-sso to SAML when prs_perslid_key_auth is set
 %>
 <!-- #include file="../Shared/common.inc"-->
 <!-- #include file="../shared/useragent.inc" -->