1 files changed, 4 insertions, 0 deletions
diff --git a/lib/feature.rb b/lib/feature.rb
index f811aef..1d18a00 100644
--- a/lib/feature.rb
+++ b/lib/feature.rb
@@ -42,4 +42,8 @@ module OpenTox
     end
   end
 
+  class OriginalId < Feature
+    field :dataset_id, type: BSON::ObjectId
+  end
+
 end