diff --git a/Casks/qlimagesize.rb b/Casks/qlimagesize.rb
index ceebd2eaf..6741a504a 100644
--- a/Casks/qlimagesize.rb
+++ b/Casks/qlimagesize.rb
@@ -1,4 +1,4 @@
-class Qlimagesize < Cask
+cask :v1 => 'qlimagesize' do
   version :latest
   sha256 :no_check