diff --git a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
index 0a047013a..7fecb8a4f 100644
--- a/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/simple_policy.ex
@@ -6,7 +6,7 @@ defmodule Pleroma.Web.ActivityPub.MRF.SimplePolicy do
 
   @accept Keyword.get(@mrf_policy, :accept)
   defp check_accept(actor_info, object) do
-    if length(@accept) > 0 and not actor_info.host in @accept do
+    if length(@accept) > 0 and not (actor_info.host in @accept) do
       {:reject, nil}
     else
       {:ok, object}
diff --git a/test/web/twitter_api/twitter_api_controller_test.exs b/test/web/twitter_api/twitter_api_controller_test.exs
index 5fcd23d90..3a035e298 100644
--- a/test/web/twitter_api/twitter_api_controller_test.exs
+++ b/test/web/twitter_api/twitter_api_controller_test.exs
@@ -504,6 +504,7 @@ test "unimplemented mutes with credentials", %{conn: conn, user: current_user} d
         conn
         |> with_credentials(current_user.nickname, "test")
         |> get("/api/qvitter/mutes.json")
+
       current_user = Repo.get(User, current_user.id)
 
       assert [] = json_response(conn, 200)