diff --git a/Casks/thunderbird-cn.rb b/Casks/thunderbird-cn.rb
index ddcccf80d..5f3126523 100644
--- a/Casks/thunderbird-cn.rb
+++ b/Casks/thunderbird-cn.rb
@@ -5,5 +5,5 @@ class ThunderbirdCn < Cask
   url "http://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/#{version}/mac/zh-CN/Thunderbird%20#{version}.dmg"
   homepage 'https://www.mozilla.org/zh-CN/thunderbird/'
 
-  link 'Thunderbird.app'
+  app 'Thunderbird.app'
 end