diff --git a/lib/last_fm/api_impl.ex b/lib/last_fm/api_impl.ex
index 488ddff5..64669dd8 100644
--- a/lib/last_fm/api_impl.ex
+++ b/lib/last_fm/api_impl.ex
@@ -80,6 +80,7 @@ defmodule LastFm.APIImpl do
   defp json_get(url) do
     req =
       Finch.build(:get, url, [
+        # TODO: move user agent to config
         {"User-Agent", "MusicLibrary/0.1.0 ( cloud8421@gmail.com )"}
       ])