diff --git a/Casks/processing3.rb b/Casks/processing3.rb
index f141640ba..665358d90 100644
--- a/Casks/processing3.rb
+++ b/Casks/processing3.rb
@@ -1,4 +1,4 @@
-class Processing3 < Cask
+cask :v1 => 'processing3' do
   version '3.0a4'
   sha256 '60f3c5d720587956833156ffc11ac762741e37cfe02355e92c5c0daed6bb2ed6'