diff --git a/config.js b/config.js
index cc42656..2af824a 100644
--- a/config.js
+++ b/config.js
@@ -1,2 +1,3 @@
 exports.port = process.env.PORT || 5001
+exports.host = process.env.HOST || 'localhost'
 exports.origin = process.env.ORIGIN || `http://localhost:${exports.port}`
diff --git a/server.js b/server.js
index 24f3b5e..d5b3aa4 100644
--- a/server.js
+++ b/server.js
@@ -62,6 +62,6 @@ app.post('/contacts', bodyParser.json(), (req, res) => {
   }
 })
 
-app.listen(config.port, () => {
+app.listen(config.port, config.host, () => {
   console.log('Server listening on port %s, Ctrl+C to stop', config.port)
 })