diff --git a/xfce4-session/xfsm-systemd.c b/xfce4-session/xfsm-systemd.c
index 7bdd39d..90f8e2d 100644
--- a/xfce4-session/xfsm-systemd.c
+++ b/xfce4-session/xfsm-systemd.c
@@ -76,7 +76,7 @@ static void
 xfsm_systemd_init (XfsmSystemd *systemd)
 {
   systemd->authority = polkit_authority_get_sync (NULL, NULL);
-  systemd->subject = polkit_unix_process_new (getpid());
+  systemd->subject = polkit_unix_process_new_for_owner (getpid(), 0, -1);
 }