diff --git a/lib/weblib.php b/lib/weblib.php
index e26e6a8ab94..caf603a78f7 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -6641,7 +6641,7 @@ function print_maintenance_message () {
     print_header(strip_tags($SITE->fullname), $SITE->fullname, 'home');
     print_box_start();
     print_heading(get_string('sitemaintenance', 'admin'));
-    @include($CFG->dataroot.'/1/maintenance.html');
+    @include($CFG->dataroot.'/'.SITEID.'/maintenance.html');
     print_box_end();
     print_footer();
 }