diff --git a/lib/identity_cache/cache_fetcher.rb b/lib/identity_cache/cache_fetcher.rb
index 937956f2..3edb54ec 100644
--- a/lib/identity_cache/cache_fetcher.rb
+++ b/lib/identity_cache/cache_fetcher.rb
@@ -107,7 +107,7 @@ def fetch_with_fill_lock(key, fill_lock_duration, lock_wait_limit)
       lock = nil
       using_fallback_key = false
       expiration_options = EMPTY_HASH
-      (lock_wait_limit + 2).times do
+      (lock_wait_limit + 2).times do # +2 is for first attempt and retry with fallback key
         result = fetch_or_take_lock(key, old_lock: lock, **expiration_options)
         case result
         when FillLock