diff --git a/Casks/plainview.rb b/Casks/plainview.rb
index f66f3ee91..be1fbaf79 100644
--- a/Casks/plainview.rb
+++ b/Casks/plainview.rb
@@ -4,7 +4,7 @@ cask :v1 => 'plainview' do
 
   url "https://s3.amazonaws.com/plainviewapp/plainview_#{version}.zip"
   homepage 'http://barbariangroup.com/'
-  license :unknown
+  license :unknown    # todo: improve this machine-generated value
 
   app 'Plainview.app'
 end