diff --git a/Casks/onyx-mountainlion.rb b/Casks/onyx-mountainlion.rb
deleted file mode 100644
index ed7192b94..000000000
--- a/Casks/onyx-mountainlion.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-cask :v1 => 'onyx-mountainlion' do
-  version '2.7.4'
-  sha256 'e025125b06fc78322347f8549871c67e570131af83e8bb18b62ed43b65d7369d'
-
-  url 'http://joel.barriere.pagesperso-orange.fr/dl/108/OnyX.dmg'
-  homepage 'http://www.titanium.free.fr/downloadonyx.php'
-  license :unknown
-
-  app 'OnyX.app'
-end