diff --git a/Casks/firefoxdeveloperedition.rb b/Casks/firefoxdeveloperedition.rb
index 12665d93a..00affccd4 100644
--- a/Casks/firefoxdeveloperedition.rb
+++ b/Casks/firefoxdeveloperedition.rb
@@ -1,4 +1,4 @@
-class Firefoxdeveloperedition < Cask
+cask :v1 => 'firefoxdeveloperedition' do
   version '35.0a2'
   sha256 'a70dcf0643ee998c9850e70bc0beb476dbc1d8b421632ca73cf4f45a69d61305'