diff --git a/Casks/adobe-reader-ja.rb b/Casks/adobe-reader-ja.rb
index 67f82f42f..fa9bd6705 100644
--- a/Casks/adobe-reader-ja.rb
+++ b/Casks/adobe-reader-ja.rb
@@ -1,4 +1,4 @@
-class AdobeReaderJa < Cask
+cask :v1 => 'adobe-reader-ja' do
   version '11.0.00'
   sha256 '69f71085799700ecd7e7f59e14095eafc5889e8962ed3a2e84e0a40d3a04d570'
   major_version = version.split('.')[0]