diff --git a/client/webrtc.js b/client/webrtc.js
index 314b829..aa98ac5 100755
--- a/client/webrtc.js
+++ b/client/webrtc.js
@@ -4,6 +4,7 @@ let peerConnection;
 let remoteVideo;
 let serverConnection;
 let uuid;
+const HTTPS_PORT = process.env.PORT || 8443;
 
 const peerConnectionConfig = {
   'iceServers': [
@@ -18,7 +19,7 @@ async function pageReady() {
   localVideo = document.getElementById('localVideo');
   remoteVideo = document.getElementById('remoteVideo');
 
-  serverConnection = new WebSocket(`wss://${window.location.hostname}:8443`);
+  serverConnection = new WebSocket(`wss://${window.location.hostname}:${HTTPS_PORT}`);
   serverConnection.onmessage = gotMessageFromServer;
 
   const constraints = {
diff --git a/server/server.js b/server/server.js
index 7a6b666..19f1f6f 100644
--- a/server/server.js
+++ b/server/server.js
@@ -1,4 +1,4 @@
-const HTTPS_PORT = 8443;
+const HTTPS_PORT = process.env.PORT || 8443;
 
 const fs = require('fs');
 const https = require('https');
@@ -67,3 +67,4 @@ function printHelp() {
 }
 
 main();
+