diff --git a/calendar.js b/calendar.js
index 73da827..8086b9b 100644
--- a/calendar.js
+++ b/calendar.js
@@ -1,3 +1,4 @@
+/* global YUI */
 YUI().use('yui2-container', 'yui2-calendar', function(Y) {
     var YAHOO = Y.YUI2;