diff --git a/app.js b/app.js
index 17c1bee..ca90ab1 100644
--- a/app.js
+++ b/app.js
@@ -335,7 +335,7 @@ if(!config.secretSession || config.secretSession === ''){
 
 app.enable('trust proxy');
 app.use(helmet());
-app.set('port', process.env.port || 1111);
+app.set('port', process.env.PORT || 1111);
 app.use(logger('dev'));
 app.use(bodyParser.urlencoded({ extended: false }));
 app.use(cookieParser(config.secretCookie));