diff --git a/Casks/coolterm.rb b/Casks/coolterm.rb
index 9c3df1c936e..eff5091a840 100644
--- a/Casks/coolterm.rb
+++ b/Casks/coolterm.rb
@@ -4,7 +4,7 @@ cask :v1 => 'coolterm' do
 
   url 'http://freeware.the-meiers.org/CoolTermMac.zip'
   homepage 'http://freeware.the-meiers.org/'
-  license :unknown    # todo: improve this machine-generated value
+  license :unknown    # todo: change license and remove this comment; ':unknown' is a machine-generated placeholder
 
   app 'CoolTermMac/CoolTerm.app'
 end