diff --git a/docs/guide.md b/docs/guide.md
index 0c443a5..415e271 100644
--- a/docs/guide.md
+++ b/docs/guide.md
@@ -13,7 +13,7 @@
   `X-Response-Time` header field the middleware would look like the following:
 
 ```js
-function *responseTime(next){
+function *responseTime(next) {
   var start = new Date;
   yield next;
   var ms = new Date - start;
@@ -88,7 +88,7 @@ app.use(function *response(){
   and returns the middleware itself:
 
 ```js
-function logger(format){
+function logger(format) {
   format = format || ':method ":url"';
 
   return function *(next){
@@ -111,7 +111,7 @@ app.use(logger(':method :url'));
   Naming middleware is optional, however it's useful for debugging purposes to assign a name.
 
 ```js
-function logger(format){
+function logger(format) {
   return function *logger(next){
 
   }
@@ -123,7 +123,7 @@ function logger(format){
   Sometimes you want to "compose" multiple middleware into a single middleware for easy re-use or exporting. To do so, you may chain them together with `.call(this, next)`s, then return another function that yields the chain.
 
 ```js
-function *random(next){
+function *random(next) {
   if ('/random' == this.path) {
     this.body = Math.floor(Math.random()*10);
   } else {
@@ -139,7 +139,7 @@ function *backwords(next) {
   }
 }
 
-function *pi(next){
+function *pi(next) {
   if ('/pi' == this.path) {
     this.body = String(Math.PI);
   } else {
diff --git a/lib/application.js b/lib/application.js
index 80ce7f4..fbf3e87 100644
--- a/lib/application.js
+++ b/lib/application.js
@@ -162,7 +162,7 @@ app.onerror = function(err){
  * Response middleware.
  */
 
-function *respond(next){
+function *respond(next) {
   if (this.app.poweredBy) this.set('X-Powered-By', 'koa');
 
   yield *next;
@@ -217,4 +217,4 @@ function *respond(next){
   this.length = Buffer.byteLength(body);
   if (head) return res.end();
   res.end(body);
-}
\ No newline at end of file
+}
diff --git a/lib/request.js b/lib/request.js
index ec1c7a2..98a6b85 100644
--- a/lib/request.js
+++ b/lib/request.js
@@ -486,7 +486,7 @@ module.exports = {
    * @api public
    */
 
-  acceptsLanguages: function() {
+  acceptsLanguages: function(){
     return this.accept.languages.apply(this.accept, arguments);
   },
 
diff --git a/lib/response.js b/lib/response.js
index c5a314d..c3df5e9 100644
--- a/lib/response.js
+++ b/lib/response.js
@@ -257,7 +257,7 @@ module.exports = {
    * @api public
    */
 
-  set type(type){
+  set type(type) {
     if (!~type.indexOf('/')) {
       type = mime.lookup(type);
       var cs = mime.charsets.lookup(type);
diff --git a/test/application.js b/test/application.js
index 4e0a297..4b0890d 100644
--- a/test/application.js
+++ b/test/application.js
@@ -33,7 +33,7 @@ describe('app', function(){
       this.status = 204;
       // throw if .writeHead or .end is called
       this.res.writeHead =
-      this.res.end = function () {
+      this.res.end = function(){
         throw new Error('response sent');
       };
     })
@@ -125,7 +125,7 @@ describe('app.respond', function(){
         this.respond = false;
 
         var res = this.res;
-        setImmediate(function () {
+        setImmediate(function(){
           res.setHeader('Content-Type', 'text/plain');
           res.end('lol');
         })
@@ -229,14 +229,14 @@ describe('app.respond', function(){
         res.setHeader("Content-Type", "text/html")
         res.status = 200;
         res.write('Hello');
-        setTimeout(function () {
+        setTimeout(function(){
           res.end("Goodbye")
         }, 0);
       });
 
       var errorCaught = false;
 
-      app.on('error', function (err) {
+      app.on('error', function(err){
         errorCaught = err;
       });
 
@@ -260,7 +260,7 @@ describe('app.respond', function(){
         res.setHeader("Content-Type", "text/html")
         res.status = 200;
         res.write('Hello');
-        setTimeout(function () {
+        setTimeout(function(){
           res.end("Goodbye")
         }, 0);
       });
@@ -306,7 +306,7 @@ describe('app.respond', function(){
         .get('/')
         .expect(204)
         .expect('')
-        .end(function (err, res) {
+        .end(function(err, res){
           if (err) return done(err);
 
           res.header.should.not.have.property('content-type');
@@ -329,7 +329,7 @@ describe('app.respond', function(){
         .get('/')
         .expect(205)
         .expect('')
-        .end(function (err, res) {
+        .end(function(err, res){
           if (err) return done(err);
 
           res.header.should.not.have.property('content-type');
@@ -352,7 +352,7 @@ describe('app.respond', function(){
         .get('/')
         .expect(304)
         .expect('')
-        .end(function (err, res) {
+        .end(function(err, res){
           if (err) return done(err);
 
           res.header.should.not.have.property('content-type');
@@ -629,4 +629,4 @@ describe('app.response', function(){
     .get('/')
     .expect(204, done);
   })
-})
\ No newline at end of file
+})
diff --git a/test/response/redirect.js b/test/response/redirect.js
index f1f3d5c..f93489d 100644
--- a/test/response/redirect.js
+++ b/test/response/redirect.js
@@ -99,4 +99,4 @@ function escape(html) {
     .replace(/"/g, '"')
     .replace(/</g, '&lt;')
     .replace(/>/g, '&gt;');
-}
\ No newline at end of file
+}
diff --git a/test/response/status.js b/test/response/status.js
index c01aa51..695f684 100644
--- a/test/response/status.js
+++ b/test/response/status.js
@@ -65,4 +65,4 @@ describe('res.status=', function(){
   describe('when 304', function(){
     strip(304);
   })
-})
\ No newline at end of file
+})