diff --git a/Casks/telegram.rb b/Casks/telegram.rb
index 3ba7b47f6..8246b68b4 100644
--- a/Casks/telegram.rb
+++ b/Casks/telegram.rb
@@ -1,4 +1,4 @@
-class Telegram < Cask
+cask :v1 => 'telegram' do
   version :latest
   sha256 :no_check