diff --git a/.mailmap b/.mailmap
index 113126433121..e30928b8d23e 100644
--- a/.mailmap
+++ b/.mailmap
@@ -5,7 +5,8 @@
 # same person appearing not to be so or badly displayed. Also allows for
 # old email addresses to map to new email addresses.
 #
-# For format details, see "MAPPING AUTHORS" in "man git-shortlog".
+# For format details, see "man gitmailmap" or "MAPPING AUTHORS" in
+# "man git-shortlog" on older systems.
 #
 # Please keep this list dictionary sorted.
 #