diff --git a/test/performance/list_test.exs b/test/performance/list_test.exs
index c15447ca..48f3c41a 100644
--- a/test/performance/list_test.exs
+++ b/test/performance/list_test.exs
@@ -14,6 +14,7 @@ defmodule Performance.ListTest do
       ])
       Earmark.as_html!(input)
     end
+    # Working since #249 which made list processing O(Prod(elements by level)) instead of exponential
     test "99_000 lines" do
       input = make_list([
         {"1.", 30}, {"-", 5}, {"23.", 10}, {"*", 6}, {"-", 11}