diff --git a/build/build.js b/build/build.js
index abbbfb1..b6862ed 100644
--- a/build/build.js
+++ b/build/build.js
@@ -23,12 +23,12 @@ var build = function (opts) {
 }
 
 build({
-  entry: 'docsify.js',
+  entry: 'index.js',
   output: 'docsify.js',
   plugins: [commonjs(), nodeResolve()]
 })
 build({
-  entry: 'docsify.js',
+  entry: 'index.js',
   output: 'docsify.min.js',
   plugins: [commonjs(), nodeResolve(), uglify()]
 })
diff --git a/src/docsify.js b/src/index.js
similarity index 87%
rename from src/docsify.js
rename to src/index.js
index 6e8f60f..1a9cc79 100644
--- a/src/docsify.js
+++ b/src/index.js
@@ -4,8 +4,6 @@ import bindEvent from './bind-event'
 
 const DEFAULT_OPTS = {
   el: '#app',
-  title: document.title,
-  sep: ' - ',
   repo: ''
 }
 
@@ -22,7 +20,6 @@ class Docsify {
     Docsify.installed = true
 
     this.opts = Object.assign({}, opts, DEFAULT_OPTS)
-    this.opts.title = (this.opts.title ? this.opts.sep : '') + this.opts.title
 
     this.replace = true
     this.dom = document.querySelector(this.opts.el)
@@ -51,9 +48,6 @@ class Docsify {
   }
 
   render (content) {
-    if (this.loc.slice(1) !== 'README') {
-      document.title = this.loc.slice(1) + this.opts.title
-    }
     this.dom[this.replace ? 'outerHTML' : 'innerHTML'] = render(content, this.opts)
   }