diff --git a/Casks/google-chrome-dev.rb b/Casks/google-chrome-dev.rb
index 8bd4aa977..f283271c1 100644
--- a/Casks/google-chrome-dev.rb
+++ b/Casks/google-chrome-dev.rb
@@ -4,6 +4,7 @@ class GoogleChromeDev < Cask
 
   url 'http://dl.google.com/chrome/mac/dev/googlechrome.dmg'
   homepage 'https://www.google.com/chrome/'
+  license :closed
 
   app 'Google Chrome.app'
 end