diff --git a/app/models/metadata_new_has_one.rb b/app/models/metadata_new_has_one.rb
index 642273e3..b75b14ae 100644
--- a/app/models/metadata_new_has_one.rb
+++ b/app/models/metadata_new_has_one.rb
@@ -1,6 +1,4 @@
 # frozen_string_literal: true
 
 # Nueva interfaz para relaciones 1:1
-class MetadataNewHasOne < MetadataHasOne
-  include Metadata::UnusedValuesConcern
-end
+class MetadataNewHasOne < MetadataHasOne; end