diff --git a/Casks/keycue.rb b/Casks/keycue.rb
index 28c5a69dc02..58d16a28876 100644
--- a/Casks/keycue.rb
+++ b/Casks/keycue.rb
@@ -4,6 +4,7 @@ class Keycue < Cask
 
   url 'http://www.ergonis.com/downloads/products/keycue/KeyCue71-Install.dmg'
   homepage 'http://www.ergonis.com/products/keycue/'
+  license :unknown
 
   app 'KeyCue.app'
 end