diff --git a/Casks/firefox-beta.rb b/Casks/firefox-beta.rb
index 34c9d0a25..335dcc9eb 100644
--- a/Casks/firefox-beta.rb
+++ b/Casks/firefox-beta.rb
@@ -1,4 +1,4 @@
-class FirefoxBeta < Cask
+cask :v1 => 'firefox-beta' do
   version '32.0b1'
   sha256 'ed09118e2f0d55b22d64e5da10bf2de1207613f05d0602f3cf050a27e504a5bd'