diff --git a/www/services/rest/index.php b/www/services/rest/index.php
index f0729aef..85ff1c8d 100644
--- a/www/services/rest/index.php
+++ b/www/services/rest/index.php
@@ -1,6 +1,6 @@
 <?php
 
-require '../../_includes.php';
+require __DIR__ . '/../../_includes.php';
 
 $request = sspmod_janus_REST_Utils::processRequest($_GET);