diff --git a/lib/cask/dsl/license.rb b/lib/cask/dsl/license.rb
index 418eb12de0e61..4a8ece62fba3a 100644
--- a/lib/cask/dsl/license.rb
+++ b/lib/cask/dsl/license.rb
@@ -13,7 +13,6 @@ class Cask::DSL::License
                     :gratis        => :closed,
                     :abandoned     => :closed,  # undocumented, should not be used yet
                     :freemium      => :closed,
-                    :trial         => :closed,  # undocumented, should not be used yet
 
                     :oss           => :oss,
                     :affero        => :oss,