diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index fd0540d4a0e..ce23f8de0d0 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -17,4 +17,6 @@
 #   from oldest to newest).
 # - Because you must use a hash, you need to append to this list in a follow-up
 #   PR to the actual reformatting PR that you are trying to ignore.
+
+# Format build dir (#29114)
 57bd457b12013d7a829520556fbd13dfd34ababc