diff --git a/Casks/isolator.rb b/Casks/isolator.rb
index bf2672d21..064d7506a 100644
--- a/Casks/isolator.rb
+++ b/Casks/isolator.rb
@@ -6,7 +6,7 @@ cask :v1 => 'isolator' do
   appcast 'http://willmore.eu/software/isolator/releases.xml',
           :sha256 => '7bcafa48189e21cb571c04ce70e5f235baf354c3a7c6b891b9ace3507acbc0f8'
   homepage 'http://willmore.eu/software/isolator'
-  license :unknown    # todo: improve this machine-generated value
+  license :unknown    # todo: change license and remove this comment; ':unknown' is a machine-generated placeholder
 
   app 'Isolator.app'
 end