diff --git a/.travis.yml b/.travis.yml
index 895dbd3..0fe6735 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,4 @@
 language: node_js
+sudo: false
 node_js:
-  - 0.6
-  - 0.8
+  - node
diff --git a/lib/protocols/drafts.js b/lib/protocols/drafts.js
index bb5db72..845f2d3 100644
--- a/lib/protocols/drafts.js
+++ b/lib/protocols/drafts.js
@@ -10,7 +10,7 @@
  */
 
 var Socket = require('../socket')
-  , EventEmitter = process.EventEmitter
+  , EventEmitter = require('events')
   , crypto = require('crypto')
   , debug = require('debug')('wsio:drafts')
 
@@ -368,4 +368,4 @@ Parser.prototype.error = function (reason) {
   this.i = 0;
   this.emit('error', reason);
   return this;
-};
+};
\ No newline at end of file
diff --git a/lib/server.js b/lib/server.js
index 9f11c4e..a84bfdb 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -4,7 +4,7 @@
  */
 
 var protocols = require('./protocols')
-  , EventEmitter = process.EventEmitter
+  , EventEmitter = require('events')
   , url = require('url');
 
 /**
@@ -123,4 +123,4 @@ Server.prototype.createClient = function (req) {
     , name = protocols[version] ? version : 'drafts'
 
   return new protocols[name](req);
-};
+};
\ No newline at end of file
diff --git a/lib/socket.js b/lib/socket.js
index 98777cd..575f4ef 100644
--- a/lib/socket.js
+++ b/lib/socket.js
@@ -3,7 +3,7 @@
  * Module dependencies.
  */
 
-var EventEmitter = process.EventEmitter
+var EventEmitter = require('events');
 
 /**
  * Module exports.
@@ -139,4 +139,4 @@ Socket.prototype.destroy = function () {
     this.onClose();
   }
   return this;
-};
+};
\ No newline at end of file
diff --git a/lib/websocket.io.js b/lib/websocket.io.js
index 739671f..ea98371 100644
--- a/lib/websocket.io.js
+++ b/lib/websocket.io.js
@@ -59,7 +59,7 @@ exports.listen = function (port, fn, options) {
     res.end('Not Implemented');
   });
 
-  server.listen(port, fn);
+  server.listen(port || 0, fn);
 
   // create ws server
   var ws = exports.attach(server, options);
@@ -85,4 +85,4 @@ exports.attach = function (server, options) {
   });
 
   return ws;
-};
+};
\ No newline at end of file
diff --git a/support/server-common.js b/support/server-common.js
index b3bf97d..9b212e4 100644
--- a/support/server-common.js
+++ b/support/server-common.js
@@ -45,9 +45,14 @@ listen = function (options, fn) {
  */
 
 client = function (addr, path) {
-  var cl = new Client('ws://' + addr.address + ':' + addr.port + (path || ''));
+  var address = addr.address;
+  if (addr.family == 'IPv6') {
+    address = '[' + address + ']';
+  }
+
+  var cl = new Client('ws://' + address + ':' + addr.port + (path || ''));
   cl.on('error', function (e) {
     throw e;
   });
   return cl;
-}
+}
\ No newline at end of file
diff --git a/test/websocket.io.js b/test/websocket.io.js
index 5736c88..dc46050 100644
--- a/test/websocket.io.js
+++ b/test/websocket.io.js
@@ -3,6 +3,7 @@
  * Test dependencies.
  */
 
+var should = require('should');
 var ws = require('../lib/websocket.io')
   , http = require('http')
 
@@ -17,12 +18,12 @@ describe('websocket.io', function () {
   });
 
   it('must expose public constructors', function () {
-    ws.Socket.should.be.a('function');
-    ws.Server.should.be.a('function');
-    ws.protocols.drafts.should.be.a('function');
-    ws.protocols['7'].should.be.a('function');
-    ws.protocols['8'].should.be.a('function');
-    ws.protocols['13'].should.be.a('function');
+    ws.Socket.should.be.a.Function;
+    ws.Server.should.be.a.Function;
+    ws.protocols.drafts.should.be.a.Function;
+    ws.protocols['7'].should.be.a.Function;
+    ws.protocols['8'].should.be.a.Function;
+    ws.protocols['13'].should.be.a.Function;
   });
 
   it('must connect', function (done) {
@@ -84,4 +85,4 @@ describe('websocket.io', function () {
     });
   });
 
-});
+});
\ No newline at end of file