diff --git a/app/models/concerns/media_object_behavior.rb b/app/models/concerns/media_object_behavior.rb
index 26d03f907f..498522fbae 100644
--- a/app/models/concerns/media_object_behavior.rb
+++ b/app/models/concerns/media_object_behavior.rb
@@ -19,6 +19,7 @@ def as_json(options={})
       id: id,
       title: title,
       collection: collection.name,
+      collection_id: collection.id,
       unit: collection.unit,
       main_contributors: creator,
       publication_date: date_created,
diff --git a/spec/controllers/media_objects_controller_spec.rb b/spec/controllers/media_objects_controller_spec.rb
index 92d03f4069..74ee109890 100644
--- a/spec/controllers/media_objects_controller_spec.rb
+++ b/spec/controllers/media_objects_controller_spec.rb
@@ -1193,6 +1193,7 @@
         expect(json['id']).to eq(media_object.id)
         expect(json['title']).to eq(media_object.title)
         expect(json['collection']).to eq(media_object.collection.name)
+        expect(json['collection_id']).to eq(media_object.collection.id)
         expect(json['main_contributors']).to eq(media_object.creator)
         expect(json['publication_date']).to eq(media_object.date_created)
         expect(json['published_by']).to eq(media_object.avalon_publisher)