diff --git a/Casks/cocktail-mountainlion.rb b/Casks/cocktail-mountainlion.rb
index dee47059e..7df8167f9 100644
--- a/Casks/cocktail-mountainlion.rb
+++ b/Casks/cocktail-mountainlion.rb
@@ -1,5 +1,5 @@
 class CocktailMountainlion < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://usa.maintain.se/CocktailMLE.dmg'