diff --git a/Casks/webp-quicklook.rb b/Casks/webp-quicklook.rb
index 25b8a7307..ae1633888 100644
--- a/Casks/webp-quicklook.rb
+++ b/Casks/webp-quicklook.rb
@@ -1,4 +1,4 @@
-class WebpQuicklook < Cask
+cask :v1 => 'webp-quicklook' do
   version '2.1'
   sha256 '9efbdd2b3dcb44d41a53c1cb6ce64397fd00bd399189b1b742d2f4b2de28f437'