diff --git a/share/man/man9/lock.9 b/share/man/man9/lock.9
index 3ee42eee8650..595c2a7c1063 100644
--- a/share/man/man9/lock.9
+++ b/share/man/man9/lock.9
@@ -25,6 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
+.Dd October 24, 2000
 .Dt LOCK 9
 .Os FreeBSD
 .Sh NAME