From 8fbfa43f8cc2f3ab13886be4f4c412b7b449c31d Mon Sep 17 00:00:00 2001
From: AJ ONeal <aj@daplie.com>
Date: Wed, 10 Aug 2016 10:23:12 -0400
Subject: [PATCH] fix #19 (tested)

---
 lib/servers.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/servers.js b/lib/servers.js
index 5c351ee..1c2b7a1 100644
--- a/lib/servers.js
+++ b/lib/servers.js
@@ -59,12 +59,12 @@ module.exports.create = function (challenge) {
         var server = https.createServer(httpsOptions, servers.httpResponder);
 
         servers._servers.push(server);
-        servers.listen(port, function () {
+        server.listen(port, function () {
           if (opts.debug) {
             console.info('Listening https on', this.address());
           }
         });
-        servers.on('error', function (err) {
+        server.on('error', function (err) {
           if ('EADDRINUSE' === err.code) {
             console.error("");
             console.error("You already have a different server running on port '" + port + "'.");