diff --git a/app/models/activity_pub/activity/undo.rb b/app/models/activity_pub/activity/undo.rb
index 4b6a5a4c..18fbff5e 100644
--- a/app/models/activity_pub/activity/undo.rb
+++ b/app/models/activity_pub/activity/undo.rb
@@ -17,7 +17,10 @@ class ActivityPub
       #
       # @see {https://github.com/hyphacoop/social.distributed.press/issues/43}
       def update_activity_pub_state!
-        activity_pub.remove!
+        ActivityPub.transaction do
+          ActivityPub::Activity.find_by(uri: content['object'])&.activity_pub&.remove!
+          activity_pub.remove!
+        end
       end
     end
   end