diff --git a/app/controllers/api/v1/webhooks/social_inbox_controller.rb b/app/controllers/api/v1/webhooks/social_inbox_controller.rb
index c6aad11f..23bd749d 100644
--- a/app/controllers/api/v1/webhooks/social_inbox_controller.rb
+++ b/app/controllers/api/v1/webhooks/social_inbox_controller.rb
@@ -131,7 +131,7 @@ module Api
         #
         # @return [ActivityPub]
         def activity_pub
-          @activity_pub ||= site.activity_pubs.find_or_create_by!(site: site, instance: instance, object: object)
+          @activity_pub ||= site.activity_pubs.find_or_create_by!(site: site, instance: instance, object_id: object.id, object_type: object.type)
         end
 
         # Crea la actividad y la vincula con el estado