diff --git a/examples/simple.js b/examples/simple.js
deleted file mode 100644
index 56221c5..0000000
--- a/examples/simple.js
+++ /dev/null
@@ -1,48 +0,0 @@
-
-var koa = require('..');
-var app = koa();
-
-// x-response-time
-
-app.use(function *responseTime(next){
-  var start = new Date;
-  yield next;
-  var ms = new Date - start;
-  this.set('X-Response-Time', ms + 'ms');
-});
-
-// logger
-
-app.use(function *logger(next){
-  var start = new Date;
-  yield next;
-  var ms = new Date - start;
-  console.log('%s %s - %s', this.method, this.url, ms);
-});
-
-// content-length
-
-app.use(function *contentLength(next){
-  yield next;
-  if (!this.body) return;
-  this.set('Content-Length', Buffer.byteLength(this.body));
-});
-
-// custom 404 handler
-
-app.use(function *notfound(next){
-  yield next;
-  if (this.body) return;
-  this.status = 404;
-  this.body = 'Sorry! No luck';
-});
-
-// response
-
-app.use(function *response(next){
-  yield next;
-  if ('/' != this.url) return;
-  this.body = 'Hello World';
-});
-
-app.listen(3000);