diff --git a/lib/semantic/subscribers/action_view.rb b/lib/semantic/subscribers/action_view.rb
index 0cbe8c6..20ba31c 100644
--- a/lib/semantic/subscribers/action_view.rb
+++ b/lib/semantic/subscribers/action_view.rb
@@ -15,6 +15,7 @@ module Semantic
         identifier = pathname(event.payload[:identifier])
         partial_savings = @partials[event.transaction_id] ||= {}
         partial_saving = partial_savings[identifier] ||= {
+          # TODO: might be smarter: origins=[{caller:, count:}]
           count: 0,
           first_origin: Rails.backtrace_cleaner.clean(caller)[1]
         }