diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index e1268aa2b3b..11d9a659b66 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -1,4 +1,6 @@
 # List of commits to ignore when using `git blame`.
+# Enable with:
+#   git config blame.ignoreRevsFile .git-blame-ignore-revs
 #
 # Per git-blame(1):
 #   Ignore revisions listed in the file, one unabbreviated object name