diff --git a/Casks/alarm-clock.rb b/Casks/alarm-clock.rb
index 6782f8a3c..583a216cc 100644
--- a/Casks/alarm-clock.rb
+++ b/Casks/alarm-clock.rb
@@ -4,7 +4,7 @@ cask :v1 => 'alarm-clock' do
 
   url "http://wayback.archive.org/web/20130123192255/http://www.robbiehanson.com/alarmclock/downloads/Alarm%20Clock%20(#{version}).dmg"
   homepage 'http://wayback.archive.org/web/20130123192255/http://www.robbiehanson.com/alarmclock/index.html'
-  license :unknown
+  license :unknown    # todo: improve this machine-generated value
 
   app 'Alarm Clock.app'
 end