diff --git a/index.js b/index.js
index 3928926..59d323b 100644
--- a/index.js
+++ b/index.js
@@ -78,7 +78,9 @@ io.on('connection', function (socket) {
     });
 });
 
-http.listen(3000, function () {
-    console.log("http://localhost:3000");
+
+port = process.env.PORT || 3000
+http.listen(port, function () {
+    console.log("http://localhost:"+port);
 });