diff --git a/lib/ace/config.js b/lib/ace/config.js
index 34bf50fd..fe9312fd 100644
--- a/lib/ace/config.js
+++ b/lib/ace/config.js
@@ -39,7 +39,7 @@ var AppConfig = require("./lib/app_config").AppConfig;
 module.exports = exports = new AppConfig();
 
 var global = (function() {
-    return this;
+    return this || typeof window != "undefined" && window;
 })();
 
 var options = {