diff --git a/app/controllers/api/v1/webhooks/social_inbox_controller.rb b/app/controllers/api/v1/webhooks/social_inbox_controller.rb
index 12545915..f52525f1 100644
--- a/app/controllers/api/v1/webhooks/social_inbox_controller.rb
+++ b/app/controllers/api/v1/webhooks/social_inbox_controller.rb
@@ -158,6 +158,8 @@ module Api
 
             a.save!
 
+            site.actor_moderations.find_or_create_by(actor: a)
+
             ActivityPub::ActorFetchJob.perform_later(site: site, actor: a)
           end
         end