diff --git a/app/controllers/concerns/current_timezone.rb b/app/controllers/concerns/current_timezone.rb
index 1e976dc87..49ec3f727 100644
--- a/app/controllers/concerns/current_timezone.rb
+++ b/app/controllers/concerns/current_timezone.rb
@@ -1,3 +1,4 @@
+# FIXME: This should move upstream to Rails. It's a good pattern.
 module CurrentTimezone
   extend ActiveSupport::Concern