diff --git a/public/js/cover.js b/public/js/cover.js
index 677d82e..bc04923 100644
--- a/public/js/cover.js
+++ b/public/js/cover.js
@@ -9,7 +9,7 @@ import {
     getLoginState,
     resetCheckAuth,
     setloginStateChangeEvent
-} from './common';
+} from './lib/common/login';
 
 import {
     clearDuplicatedHistory,
diff --git a/public/js/extra.js b/public/js/extra.js
index 6cfb5b0..b651d9e 100644
--- a/public/js/extra.js
+++ b/public/js/extra.js
@@ -11,7 +11,7 @@ import PDFObject from 'pdfobject';
 import S from 'string';
 import { saveAs } from 'file-saver';
 
-require('./common');
+require('./lib/common/login');
 require('../vendor/md-toc');
 var Viz = require("viz.js");
 
diff --git a/public/js/history.js b/public/js/history.js
index f120168..34b2cba 100644
--- a/public/js/history.js
+++ b/public/js/history.js
@@ -1,9 +1,13 @@
 import store from 'store';
 import S from 'string';
+
+import {
+    checkIfAuth
+} from './lib/common/login';
+
 import {
-    checkIfAuth,
     urlpath
-} from './common';
+} from './lib/config';
 
 window.migrateHistoryFromTempCallback = null;
 
diff --git a/public/js/index.js b/public/js/index.js
index 660f73e..3bf42ad 100644
--- a/public/js/index.js
+++ b/public/js/index.js
@@ -19,7 +19,10 @@ var List = require('list.js');
 
 import {
     checkLoginStateChanged,
-    setloginStateChangeEvent,
+    setloginStateChangeEvent
+} from './lib/common/login';
+
+import {
     debug,
     DROPBOX_APP_KEY,
     GOOGLE_API_KEY,
@@ -28,7 +31,7 @@ import {
     noteurl,
     urlpath,
     version
-} from './common';
+} from './lib/config';
 
 import {
     autoLinkify,
diff --git a/public/js/common.js b/public/js/lib/common/login.js
similarity index 98%
rename from public/js/common.js
rename to public/js/lib/common/login.js
index 9a60122..12cc41f 100644
--- a/public/js/common.js
+++ b/public/js/lib/common/login.js
@@ -1,4 +1,4 @@
-import { serverurl } from './lib/config';
+import { serverurl } from '../config';
 
 let checkAuth = false;
 let profile = null;