diff --git a/lib/app.js b/lib/app.js
index ef7e7c86..ab0d8ce2 100755
--- a/lib/app.js
+++ b/lib/app.js
@@ -57,8 +57,14 @@ config.load(function(err, conf) {
     var testkeys = path.join(__dirname, '..', 'testkeys');
     var privateKey = fs.readFileSync(path.join(testkeys, 'privatekey.pem'));
     var certificate = fs.readFileSync(path.join(testkeys, 'certificate.pem'));
-    var credentials = {key: privateKey, cert: certificate};
-    https.createServer(credentials, app).listen(port, function () {
+
+    var options = {
+      key: privateKey,
+      cert: certificate,
+      requestCert: true
+    };
+
+    https.createServer(options, app).listen(port, function () {
       console.log('Express server listening on port ' + port + ' (https)');
     });
   }