diff --git a/src/core/config.js b/src/core/config.js
index 5c2354cb..0a8763a8 100644
--- a/src/core/config.js
+++ b/src/core/config.js
@@ -1,68 +1,70 @@
 import {merge, hyphenate, isPrimitive, hasOwn} from './util/core'
 
-const config = merge(
-  {
-    el: '#app',
-    repo: '',
-    maxLevel: 6,
-    subMaxLevel: 0,
-    loadSidebar: null,
-    loadNavbar: null,
-    homepage: 'README.md',
-    coverpage: '',
-    basePath: '',
-    auto2top: false,
-    name: '',
-    themeColor: '',
-    nameLink: window.location.pathname,
-    autoHeader: false,
-    executeScript: null,
-    noEmoji: false,
-    ga: '',
-    ext: '.md',
-    mergeNavbar: false,
-    formatUpdated: '',
-    externalLinkTarget: '_blank',
-    routerMode: 'hash',
-    noCompileLinks: []
-  },
-  window.$docsify
-)
+export default function () {
+  const config = merge(
+    {
+      el: '#app',
+      repo: '',
+      maxLevel: 6,
+      subMaxLevel: 0,
+      loadSidebar: null,
+      loadNavbar: null,
+      homepage: 'README.md',
+      coverpage: '',
+      basePath: '',
+      auto2top: false,
+      name: '',
+      themeColor: '',
+      nameLink: window.location.pathname,
+      autoHeader: false,
+      executeScript: null,
+      noEmoji: false,
+      ga: '',
+      ext: '.md',
+      mergeNavbar: false,
+      formatUpdated: '',
+      externalLinkTarget: '_blank',
+      routerMode: 'hash',
+      noCompileLinks: []
+    },
+    window.$docsify
+  )
 
-const script =
-  document.currentScript ||
-  [].slice
-    .call(document.getElementsByTagName('script'))
-    .filter(n => /docsify\./.test(n.src))[0]
+  const script =
+    document.currentScript ||
+    [].slice
+      .call(document.getElementsByTagName('script'))
+      .filter(n => /docsify\./.test(n.src))[0]
 
-if (script) {
-  for (const prop in config) {
-    if (hasOwn.call(config, prop)) {
-      const val = script.getAttribute('data-' + hyphenate(prop))
+  if (script) {
+    for (const prop in config) {
+      if (hasOwn.call(config, prop)) {
+        const val = script.getAttribute('data-' + hyphenate(prop))
 
-      if (isPrimitive(val)) {
-        config[prop] = val === '' ? true : val
+        if (isPrimitive(val)) {
+          config[prop] = val === '' ? true : val
+        }
       }
     }
+
+    if (config.loadSidebar === true) {
+      config.loadSidebar = '_sidebar' + config.ext
+    }
+    if (config.loadNavbar === true) {
+      config.loadNavbar = '_navbar' + config.ext
+    }
+    if (config.coverpage === true) {
+      config.coverpage = '_coverpage' + config.ext
+    }
+    if (config.repo === true) {
+      config.repo = ''
+    }
+    if (config.name === true) {
+      config.name = ''
+    }
   }
 
-  if (config.loadSidebar === true) {
-    config.loadSidebar = '_sidebar' + config.ext
-  }
-  if (config.loadNavbar === true) {
-    config.loadNavbar = '_navbar' + config.ext
-  }
-  if (config.coverpage === true) {
-    config.coverpage = '_coverpage' + config.ext
-  }
-  if (config.repo === true) {
-    config.repo = ''
-  }
-  if (config.name === true) {
-    config.name = ''
-  }
+  window.$docsify = config
+
+  return config
 }
-
-window.$docsify = config
-
-export default config
diff --git a/src/core/init/index.js b/src/core/init/index.js
index a8e8800f..fe88c31d 100644
--- a/src/core/init/index.js
+++ b/src/core/init/index.js
@@ -9,7 +9,7 @@ import {isFn} from '../util/core'
 export function initMixin(proto) {
   proto._init = function () {
     const vm = this
-    vm.config = config || {}
+    vm.config = config()
 
     initLifecycle(vm) // Init hooks
     initPlugin(vm) // Install plugins