diff --git a/package.json b/package.json
index 0d36ee9332083ec98c79c1ff0325d4821fcd88bf..22054268f2e248502cb53621264298369f5332c9 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,6 @@
     "DEFAULT_PUPPET": "web",
     "DEFAULT_PROFILE": "profile",
     "DEFAULT_PORT": 8788,
-    "DEFAULT_PUPPET_PORT": 18788,
     "DEFAULT_PROTOCOL": "io|0.0.1",
     "DEFAULT_TOKEN": "WECHATY_IO_TOKEN",
     "DEFAULT_APIHOST": "api.wechaty.io",
diff --git a/src/config.spec.js b/src/config.spec.js
index 5010a4b8f69415e8e0e33204a35fc98cb633be06..f5659486b47c63ca0267d2634e1c69ecc8c087d4 100644
--- a/src/config.spec.js
+++ b/src/config.spec.js
@@ -16,7 +16,6 @@ test('Config list vars', t => {
   t.truthy(Config.DEFAULT_PORT        , 'should export DEFAULT_PORT')
   t.truthy(Config.DEFAULT_PROFILE     , 'should export DEFAULT_PROFILE')
   t.truthy(Config.DEFAULT_HEAD        , 'should export DEFAULT_HEAD')
-  t.truthy(Config.DEFAULT_PUPPET_PORT , 'should export DEFAULT_PUPPET_PORT')
   t.truthy(Config.DEFAULT_PROTOCOL    , 'should export DEFAULT_PROTOCOL')
   t.truthy(Config.DEFAULT_APIHOST     , 'should export DEFAULT_APIHOST')
   t.truthy(Config.CMD_CHROMIUM        , 'should export CMD_CHROMIUM')
diff --git a/src/puppet-web/puppet-web.js b/src/puppet-web/puppet-web.js
index fcd3d10a3d5806cdfcae8580a246035a160eb8af..e1b5697c488604f654a940e4f1c584e6443c0682 100644
--- a/src/puppet-web/puppet-web.js
+++ b/src/puppet-web/puppet-web.js
@@ -36,6 +36,8 @@ const Watchdog  = require('./watchdog')
 const UtilLib = require('../util-lib')
 const Config  = require('../config')
 
+const DEFAULT_PUPPET_PORT = 18788 // // W(87) X(88), ascii char code ;-]
+
 class PuppetWeb extends Puppet {
   constructor({
     head = Config.head
@@ -62,7 +64,7 @@ class PuppetWeb extends Puppet {
 
     return co.call(this, function* () {
 
-      this.port = yield UtilLib.getPort(Config.DEFAULT_PUPPET_PORT)
+      this.port = yield UtilLib.getPort(DEFAULT_PUPPET_PORT)
       log.verbose('PuppetWeb', 'init() getPort %d', this.port)
 
       yield this.initAttach(this)
diff --git a/src/puppet-web/server.js b/src/puppet-web/server.js
index a05c8ad719e373eb4ced978d12aa2f2e8403ba2d..9e5f48883405602d6c815742cea09052138742c0 100644
--- a/src/puppet-web/server.js
+++ b/src/puppet-web/server.js
@@ -23,9 +23,14 @@ const EventEmitter  = require('events')
 
 class Server extends EventEmitter {
   constructor({
-    port = Config.DEFAULT_PUPPET_PORT // W(87) X(88), ascii char code ;-]
-  } = {}) {
+    port 
+  }) {
     super()
+
+    if (!port) {
+      throw new Error('port not found')
+    }
+    
     this.port = port 
   }
 
diff --git a/test/wechaty.spec.js b/test/wechaty.spec.js
index 5e51cf0d6c76de3f74cd3f3ecbd906065c3e7693..bda9d1f0d9c82aef1c08d71715112eb6c1ad67b5 100644
--- a/test/wechaty.spec.js
+++ b/test/wechaty.spec.js
@@ -26,5 +26,4 @@ test('Wechaty Config setting', t => {
   t.truthy(Config.DEFAULT_HEAD    , 'should has DEFAULT_HEAD')
   t.truthy(Config.DEFAULT_PUPPET  , 'should has DEFAULT_PUPPET')
   t.truthy(Config.DEFAULT_PORT    , 'should has DEFAULT_PORT')
-  t.truthy(Config.DEFAULT_PUPPET_PORT, 'should has DEFAULT_PUPPET_PORT')
 })