diff --git a/Casks/screenflow.rb b/Casks/screenflow.rb
index 59498aabb9d..6ec0f00e712 100644
--- a/Casks/screenflow.rb
+++ b/Casks/screenflow.rb
@@ -4,7 +4,7 @@ cask :v1 => 'screenflow' do
 
   url "http://www.telestream.net/download-files/screenflow/5-0/ScreenFlow-#{version}.dmg"
   homepage 'http://www.telestream.net/screenflow/'
-  license :unknown
+  license :unknown    # todo: improve this machine-generated value
 
   app 'ScreenFlow.app'
 end