diff --git a/index.js b/index.js
index 19674fe..59ca241 100644
--- a/index.js
+++ b/index.js
@@ -43,7 +43,7 @@ if(process.env.NODE_ENV == 'production') {
 		key: readFileSync(process.env.PRIVATE_KEY_PATH),
 		cert: readFileSync(process.env.CERT_PATH)
 	}, app);
-	httpsServer.listen(8443);
+	httpsServer.listen(process.env.LISTEN_PORT);
 } else {
 	app.listen(3000);
 }