diff --git a/lib/clacks/activitypub/federator.ex b/lib/clacks/activitypub/federator.ex
index a8a2837..36cc207 100644
--- a/lib/clacks/activitypub/federator.ex
+++ b/lib/clacks/activitypub/federator.ex
@@ -18,7 +18,7 @@ defmodule Clacks.ActivityPub.Federator do
     addressed_actors =
       if actor.data["followers"] in addressed do
         addressed = List.delete(addressed, actor.data["followers"])
-        [actor.followers | addressed]
+        actor.followers ++ addressed
       else
         addressed
       end
diff --git a/lib/clacks/user_actions_helper.ex b/lib/clacks/user_actions_helper.ex
index 4eda348..faa0d1e 100644
--- a/lib/clacks/user_actions_helper.ex
+++ b/lib/clacks/user_actions_helper.ex
@@ -48,12 +48,11 @@ defmodule Clacks.UserActionsHelper do
     end
   end
 
-  @spec get_addressed(String.t(), [{String.t(), Actor.t()}], String.t() | nil) ::
+  @spec get_addressed(User.t(), [{String.t(), Actor.t()}], String.t() | nil) ::
           {[String.t()], [String.t()]}
-  defp get_addressed(_author, mentions, in_reply_to_actor) do
+  defp get_addressed(author, mentions, in_reply_to_actor) do
     to = [@public | Enum.map(mentions, fn {_, actor} -> actor.ap_id end)]
-    # todo: followers
-    cc = []
+    cc = [Repo.preload(author, :actor).actor.data["followers"]]
 
     to =
       case in_reply_to_actor do