diff --git a/Casks/stackroom.rb b/Casks/stackroom.rb
index 8b7002d0f..e7353463f 100644
--- a/Casks/stackroom.rb
+++ b/Casks/stackroom.rb
@@ -1,4 +1,4 @@
-class Stackroom < Cask
+cask :v1 => 'stackroom' do
   version '2.0b'
   sha256 'b5904f8c39a3941a827cea31e77dc9c62b12025cccddc5b42869615392a543ce'