diff --git a/bin/cli.js b/bin/cli.js
old mode 100755
new mode 100644
index 3a5cb46..73a9a64
--- a/bin/cli.js
+++ b/bin/cli.js
@@ -1,11 +1,10 @@
-#!/usr/bin/env node
 const fs = require('fs');
 const path = require('path');
 const chalk = require('chalk');
 const init = require('./init');
 const bootstrap = require('./bootstrap');
 const modules = require('./modules');
-const {version} = require('../package.json');
+const version = global.__WEBPACK__ ? global.__VERSION__ : require('../package.json').version;
 
 const examples = [
   ['Generate json file', '$ blinksocks init'],
@@ -33,51 +32,53 @@ ${examples.map(([description, example]) => `  ${chalk.gray('-')} ${description}\
 
 const argv = process.argv;
 
-if (argv.length < 3) {
-  return console.log(usage);
-}
-
-const options = argv.slice(2);
-
-function hasOption(opt) {
-  return options.indexOf(opt) !== -1;
-}
-
-function getOptionValue(opt) {
-  const index = options.indexOf(opt);
-  if (index !== -1) {
-    return options[index + 1];
-  }
-  return undefined;
-}
-
-if (hasOption('-h') || hasOption('--help')) {
-  return console.log(usage);
-}
-
-if (hasOption('-v') || hasOption('--version')) {
-  return console.log(version);
-}
-
-if (hasOption('-c') || hasOption('--config')) {
-  let configPath = getOptionValue('-c') || getOptionValue('--config');
-
-  if (configPath === undefined) {
-    return console.log(chalk.red('config file must be provided'));
+(function main() {
+  if (argv.length < 3) {
+    return console.log(usage);
   }
 
-  configPath = path.resolve(process.cwd(), configPath);
+  const options = argv.slice(2);
 
-  if (!fs.existsSync(configPath)) {
-    return console.log(chalk.red('config file is not found'));
+  function hasOption(opt) {
+    return options.indexOf(opt) !== -1;
   }
 
-  return bootstrap(configPath, modules);
-}
+  function getOptionValue(opt) {
+    const index = options.indexOf(opt);
+    if (index !== -1) {
+      return options[index + 1];
+    }
+    return undefined;
+  }
 
-if (options[0] === 'init') {
-  return init();
-}
+  if (hasOption('-h') || hasOption('--help')) {
+    return console.log(usage);
+  }
 
-// other cases
-console.log(usage);
+  if (hasOption('-v') || hasOption('--version')) {
+    return console.log(version);
+  }
+
+  if (hasOption('-c') || hasOption('--config')) {
+    let configPath = getOptionValue('-c') || getOptionValue('--config');
+
+    if (configPath === undefined) {
+      return console.log(chalk.red('config file must be provided'));
+    }
+
+    configPath = path.resolve(process.cwd(), configPath);
+
+    if (!fs.existsSync(configPath)) {
+      return console.log(chalk.red('config file is not found'));
+    }
+
+    return bootstrap(configPath, modules);
+  }
+
+  if (options[0] === 'init') {
+    return init();
+  }
+
+  // other cases
+  console.log(usage);
+})();
diff --git a/bin/start.js b/bin/start.js
new file mode 100755
index 0000000..3ca31c1
--- /dev/null
+++ b/bin/start.js
@@ -0,0 +1,2 @@
+#!/usr/bin/env node
+require('./cli');
diff --git a/package.json b/package.json
index a946054..ad4b08f 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "AUTHORS"
   ],
   "bin": {
-    "blinksocks": "bin/cli.js"
+    "blinksocks": "bin/start.js"
   },
   "scripts": {
     "test": "npm run lint && npm run test:coverage",
diff --git a/src/index.js b/src/index.js
index f969720..0b879cb 100755
--- a/src/index.js
+++ b/src/index.js
@@ -1,32 +1 @@
-import fs from 'fs';
-import path from 'path';
-import * as __modules__ from './core';
-
-// only for webpack bundle
-if (global.__WEBPACK__) {
-  const argv = process.argv;
-  const usage = 'Usage: node blinksocks.js -c/--config <json_file>';
-
-  if (argv.length !== 4 || (argv[2] !== '-c' && argv[2] !== '--config') || !argv[3].endsWith('.json')) {
-    console.log(usage);
-    process.exit(0);
-  }
-
-  const file = path.resolve(process.cwd(), argv[3]);
-
-  let json = null;
-  try {
-    const jsonFile = fs.readFileSync(file);
-    json = JSON.parse(jsonFile);
-  } catch (err) {
-    throw Error(`fail to parse your '${file}': ${err.message}`);
-  }
-
-  const app = new __modules__.Hub(json);
-  app.on('close', () => process.exit(0));
-  app.run();
-
-  process.on('SIGINT', () => app.terminate());
-}
-
-module.exports = __modules__;
+module.exports = require('./core');
diff --git a/webpack.config.js b/webpack.config.js
index 4aa79cf..d6cd0aa 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -1,7 +1,7 @@
 const path = require('path');
 const webpack = require('webpack');
 const BabiliPlugin = require('babili-webpack-plugin');
-const packageJson = require('./package.json');
+const {version} = require('./package.json');
 
 // TODO: prevent packing src/presets/__tests__/*.test.js into blinksocks.js
 // ./src/presets ^\.\/.*$ 789 bytes {0} [optional] [built]
@@ -14,7 +14,7 @@ module.exports = {
   target: 'node',
 
   entry: {
-    'blinksocks': './src/index.js'
+    'blinksocks': './bin/cli.js'
   },
 
   output: {
@@ -57,14 +57,15 @@ module.exports = {
     new BabiliPlugin(),
     new webpack.DefinePlugin({
       'process.env.NODE_ENV': JSON.stringify('production'),
-      'global.__WEBPACK__': JSON.stringify(true)
+      'global.__WEBPACK__': JSON.stringify(true),
+      'global.__VERSION__': JSON.stringify(version)
     }),
     new webpack.IgnorePlugin(/__mocks__/, /__tests__/),
     new webpack.BannerPlugin({
       banner: [
         'Copyright (c) 2016-present, [name]. All rights reserved.\n',
         'name: [file]',
-        `version: v${packageJson.version}`,
+        `version: v${version}`,
         'hash: [hash]'
       ].join('\n'),
       entryOnly: true