diff --git a/lib/cask/artifact/caskroom_only.rb b/lib/cask/artifact/caskroom_only.rb
index b5efc875951c9..44f6fb6c53cd8 100644
--- a/lib/cask/artifact/caskroom_only.rb
+++ b/lib/cask/artifact/caskroom_only.rb
@@ -1,4 +1,4 @@
-class Cask::Artifact::CaskroomOnly < Cask::Artifact::Pkg
+class Cask::Artifact::CaskroomOnly < Cask::Artifact::Base
   def self.artifact_dsl_key
     :caskroom_only
   end