diff --git a/Casks/boom.rb b/Casks/boom.rb
index 7cd80a61502..6d7f7596b13 100644
--- a/Casks/boom.rb
+++ b/Casks/boom.rb
@@ -1,4 +1,4 @@
-class Boom < Cask
+cask :v1 => 'boom' do
   version :latest
   sha256 :no_check