diff --git a/Casks/omnioutliner.rb b/Casks/omnioutliner.rb
index 6083b5c72b8..1315e991777 100644
--- a/Casks/omnioutliner.rb
+++ b/Casks/omnioutliner.rb
@@ -4,7 +4,7 @@ cask :v1 => 'omnioutliner' do
 
   url 'https://www.omnigroup.com/download/latest/omnioutliner'
   homepage 'http://www.omnigroup.com/omnioutliner/'
-  license :unknown    # todo: improve this machine-generated value
+  license :unknown    # todo: change license and remove this comment; ':unknown' is a machine-generated placeholder
 
   app 'OmniOutliner.app'
 end