diff --git a/Casks/xnconvert.rb b/Casks/xnconvert.rb
index a2b782677..bc82d403b 100644
--- a/Casks/xnconvert.rb
+++ b/Casks/xnconvert.rb
@@ -1,5 +1,5 @@
 class Xnconvert < Cask
-  version 'latest'
+  version :latest
   sha256 :no_check
 
   url 'http://download.xnview.com/XnConvert-mac-x64.tgz'