diff --git a/lib/less-browser/index.js b/lib/less-browser/index.js
index af78acf3..c43e9b71 100644
--- a/lib/less-browser/index.js
+++ b/lib/less-browser/index.js
@@ -20,10 +20,12 @@ console.warn("about to apply polyfill " + window.Promise);
 require('promise/polyfill.js');
 
 console.warn("polyfill applied" + window.Promise);
-
+/* global TravisCITest:true */
 (function() {
     console.log("am I in strict mode? "+this);
+    TravisCITest = function(){};
 })();
+console.log("TravisCITest ="+TravisCITest);
 
 window.less = less = require('../less')();
 var environment = less.environment,