diff --git a/lib/docsify.js b/lib/docsify.js
index 025ee7bf..45abff4e 100644
--- a/lib/docsify.js
+++ b/lib/docsify.js
@@ -2249,8 +2249,6 @@ var bindEvent = function () {
 
 var DEFAULT_OPTS = {
   el: '#app',
-  title: document.title,
-  sep: ' - ',
   repo: ''
 };
 
@@ -2266,7 +2264,6 @@ var Docsify = function Docsify (opts) {
   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);
@@ -2297,9 +2294,6 @@ Docsify.prototype.load = function load () {
 };
 
 Docsify.prototype.render = function render$1 (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);
 };
 
diff --git a/lib/docsify.min.js b/lib/docsify.min.js
index 18404d09..d14c66af 100644
--- a/lib/docsify.min.js
+++ b/lib/docsify.min.js
@@ -1 +1 @@
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