diff --git a/thunar/thunar-session-client.c b/thunar/thunar-session-client.c
index de8db1f..19d816d 100644
--- a/thunar/thunar-session-client.c
+++ b/thunar/thunar-session-client.c
@@ -173,6 +173,10 @@ thunar_session_client_connect (ThunarSessionClient *session_client,
   gdk_set_sm_client_id (id);
 
   /* remember the returned client id */
+#if GLIB_CHECK_VERSION (2, 46, 0)
+  /* just use the memory */
+  session_client->id = id;
+#else
   if (g_mem_is_system_malloc ())
     {
       /* just use the memory */
@@ -184,6 +188,7 @@ thunar_session_client_connect (ThunarSessionClient *session_client,
       session_client->id = g_strdup (id);
       free (id);
     }
+#endif
 
   /* determine the session file path */
   spec = g_strconcat ("sessions/Thunar-", session_client->id, NULL);