diff --git a/args.js b/args.js
index 1d88ea2..5bf50d4 100644
--- a/args.js
+++ b/args.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 1.6.3
+// Generated by CoffeeScript 1.7.1
 (function() {
   var allConfigs, defaultConfig, deleteConfig, fs, guiconfigFilename, loadConfig, loadConfigs, loadFromJSON, loadIndex, localStorage, publicConfig, saveConfig, saveConfigs, saveIndex, saveToJSON, util;
 
diff --git a/icon.png b/icon.png
index fd099e7..5f1f98e 100644
Binary files a/icon.png and b/icon.png differ
diff --git a/main.js b/main.js
index d4d7741..72a725f 100644
--- a/main.js
+++ b/main.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 1.6.3
+// Generated by CoffeeScript 1.7.1
 (function() {
   var __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
 
@@ -175,7 +175,7 @@
       return gui.Shell.openExternal('https://github.com/shadowsocks/shadowsocks-gui');
     });
     tray = new gui.Tray({
-      icon: 'menu_icon.png'
+      icon: 'menu_icon@2x.png'
     });
     menu = new gui.Menu();
     tray.on('click', function() {
diff --git a/menu_icon.png b/menu_icon.png
index b9a75b9..1c1c7eb 100644
Binary files a/menu_icon.png and b/menu_icon.png differ
diff --git a/menu_icon@2x.png b/menu_icon@2x.png
index 94bd459..a6e8531 100644
Binary files a/menu_icon@2x.png and b/menu_icon@2x.png differ
diff --git a/src/main.coffee b/src/main.coffee
index 9ea69b2..024f971 100644
--- a/src/main.coffee
+++ b/src/main.coffee
@@ -161,7 +161,7 @@ $ ->
   $('#buttonAbout').on 'click', ->
     gui.Shell.openExternal 'https://github.com/shadowsocks/shadowsocks-gui'
   
-  tray = new gui.Tray icon: 'menu_icon.png'
+  tray = new gui.Tray icon: 'menu_icon@2x.png'
   menu = new gui.Menu()
   
   tray.on 'click', ->
diff --git a/update.js b/update.js
index a98a619..a6c0744 100644
--- a/update.js
+++ b/update.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 1.6.3
+// Generated by CoffeeScript 1.7.1
 (function() {
   var checkUpdate, compareVersion, platformMap, util;
 
diff --git a/utils/make_icon.sh b/utils/make_icon.sh
new file mode 100755
index 0000000..652586a
--- /dev/null
+++ b/utils/make_icon.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+LAST=`pwd`
+pushd /tmp
+mkdir icon.iconset
+sips -z 16 16     $LAST/icon.png --out icon.iconset/icon_16x16.png
+sips -z 32 32     $LAST/icon.png --out icon.iconset/icon_16x16@2x.png
+sips -z 32 32     $LAST/icon.png --out icon.iconset/icon_32x32.png
+sips -z 64 64     $LAST/icon.png --out icon.iconset/icon_32x32@2x.png
+sips -z 128 128   $LAST/icon.png --out icon.iconset/icon_128x128.png
+sips -z 256 256   $LAST/icon.png --out icon.iconset/icon_128x128@2x.png
+sips -z 256 256   $LAST/icon.png --out icon.iconset/icon_256x256.png
+sips -z 512 512   $LAST/icon.png --out icon.iconset/icon_256x256@2x.png
+sips -z 512 512   $LAST/icon.png --out icon.iconset/icon_512x512.png
+cp $LAST/icon.png icon.iconset/icon_512x512@2x.png
+iconutil -c icns icon.iconset
+rm -R icon.iconset
+popd
+mv /tmp/icon.icns utils/shadowsocks.icns
\ No newline at end of file
diff --git a/utils/shadowsocks.icns b/utils/shadowsocks.icns
index 4d8c007..6045236 100644
Binary files a/utils/shadowsocks.icns and b/utils/shadowsocks.icns differ