diff --git a/Casks/coolterm.rb b/Casks/coolterm.rb
index 201dbee85..64e07180c 100644
--- a/Casks/coolterm.rb
+++ b/Casks/coolterm.rb
@@ -1,4 +1,4 @@
-class Coolterm < Cask
+cask :v1 => 'coolterm' do
   version :latest
   sha256 :no_check