diff --git a/templates/calendar.php b/templates/calendar.php
index e17d565d6..e5c86abe5 100644
--- a/templates/calendar.php
+++ b/templates/calendar.php
@@ -1,4 +1,4 @@
-<script type="text/javascript" src="<?php print_unescaped(OC_Helper::linkTo('calendar/js', 'l10n.php'));?>"></script>
+<script type="text/javascript" src="<?php print_unescaped(\OC::$server->getURLGenerator()->linkTo('calendar', '/js/l10n.php'));?>"></script>
 
 <div id="notification" style="display:none;"></div>
 <div id="app-navigation">