diff --git a/sbin/setkey/setkey.8 b/sbin/setkey/setkey.8
index 62fb2e1d2ba4..1eab81490ad9 100644
--- a/sbin/setkey/setkey.8
+++ b/sbin/setkey/setkey.8
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 3, 2015
+.Dd October 3, 2016
 .Dt SETKEY 8
 .Os
 .\"
@@ -713,6 +713,8 @@ The
 .Nm
 utility first appeared in WIDE Hydrangea IPv6 protocol stack kit.
 The utility was completely re-designed in June 1998.
+It first appeared in
+.Fx 4.0 .
 .\"
 .Sh BUGS
 The