diff --git a/lib/nulla/http_signature.ex b/lib/nulla/http_signature.ex
index ccfe0cc..e32e5b2 100644
--- a/lib/nulla/http_signature.ex
+++ b/lib/nulla/http_signature.ex
@@ -2,7 +2,7 @@ defmodule Nulla.HTTPSignature do
   import Plug.Conn
   alias Nulla.Models.User
 
-  def make_header(body, inbox_url, actor) do
+  def make_headers(body, inbox_url, actor) do
     digest = "SHA-256=" <> (:crypto.hash(:sha256, body) |> Base.encode64())
     date = DateTime.utc_now() |> Calendar.strftime("%a, %d %b %Y %H:%M:%S GMT")
     uri = URI.parse(inbox_url)
diff --git a/lib/nulla_web/controllers/inbox_controller.ex b/lib/nulla_web/controllers/inbox_controller.ex
index 168503e..0323657 100644
--- a/lib/nulla_web/controllers/inbox_controller.ex
+++ b/lib/nulla_web/controllers/inbox_controller.ex
@@ -110,7 +110,7 @@ defmodule NullaWeb.InboxController do
          {:ok, _relation} <- Relation.get_or_create_relation(local_actor.id, remote_actor.id) do
       activity = %Activity{accept_activity | object: Jason.decode!(accept_activity.object)}
       body = Jason.encode!(ActivityPub.activity(activity))
-      headers = HTTPSignature.make_header(body, remote_actor_json["inbox"], local_actor)
+      headers = HTTPSignature.make_headers(body, remote_actor_json["inbox"], local_actor)
       request = Finch.build(:post, remote_actor_json["inbox"], headers, body)
 
       case Finch.request(request, Nulla.Finch) do