diff --git a/Casks/tinkertool.rb b/Casks/tinkertool.rb
index 7d95ad161..51b40cf1e 100644
--- a/Casks/tinkertool.rb
+++ b/Casks/tinkertool.rb
@@ -1,5 +1,5 @@
 class Tinkertool < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://dl.macupdate.com/prod/TinkerTool.dmg'