diff --git a/Casks/fivedetails-flow.rb b/Casks/fivedetails-flow.rb
index 33dd981dc..e2890893d 100644
--- a/Casks/fivedetails-flow.rb
+++ b/Casks/fivedetails-flow.rb
@@ -5,7 +5,7 @@ cask :v1 => 'fivedetails-flow' do
   url 'http://fivedetails.com/flow/download'
   appcast 'http://extendmac.com/flow/updates/update.php'
   homepage 'http://fivedetails.com'
-  license :unknown
+  license :unknown    # todo: improve this machine-generated value
 
   app 'Flow.app'
 end