diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index b1ff99d9c6..2c35dd160a 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -1,2 +1,3 @@
 add5f7b8eba427de9d39caae864bbc6dc37ef980
+# Apply black on doc/conf.py
 2dd9027054db541871713ef1cb1ae89513d05555