diff --git a/lib/pleroma/web/activity_pub/builder.ex b/lib/pleroma/web/activity_pub/builder.ex
index eb0bb0e33..404975757 100644
--- a/lib/pleroma/web/activity_pub/builder.ex
+++ b/lib/pleroma/web/activity_pub/builder.ex
@@ -9,6 +9,7 @@ defmodule Pleroma.Web.ActivityPub.Builder do
   This module encodes our addressing policies and general shape of our objects.
   """
 
+  alias Pleroma.Activity
   alias Pleroma.Emoji
   alias Pleroma.Object
   alias Pleroma.User