diff --git a/lib/ssh.js b/lib/ssh.js
index f650413..e905da4 100644
--- a/lib/ssh.js
+++ b/lib/ssh.js
@@ -1,13 +1,13 @@
 var Client = require('ssh2').Client,
   http = require('http');
 
-module.exports = function(opt) {
+module.exports = function (opt) {
   var conn = new Client();
   var agent = new http.Agent();
 
-  agent.createConnection = function(options, fn) {
-    conn.once('ready', function() {
-      conn.exec('docker system dial-stdio', function(err, stream) {
+  agent.createConnection = function (options, fn) {
+    conn.once('ready', function () {
+      conn.exec('docker system dial-stdio', function (err, stream) {
         if (err) {
           conn.end();
           agent.destroy();
@@ -21,6 +21,8 @@ module.exports = function(opt) {
           agent.destroy();
         });
       });
+    }).on('error', (err) => {
+      fn(err);
     }).connect(opt);
 
     conn.once('end', () => agent.destroy());