diff --git a/share/man/man4/ng_iface.4 b/share/man/man4/ng_iface.4
index c2a8becbd41f..74e3cdbfef18 100644
--- a/share/man/man4/ng_iface.4
+++ b/share/man/man4/ng_iface.4
@@ -149,5 +149,5 @@ The
 .Nm iface
 node type was implemented in
 .Fx 4.0 .
-.Sh AUTHOR
+.Sh AUTHORS
 .An Archie Cobbs Aq archie@whistle.com
diff --git a/share/man/man4/ng_mppc.4 b/share/man/man4/ng_mppc.4
index dc6e171dbcc4..3644efc169d2 100644
--- a/share/man/man4/ng_mppc.4
+++ b/share/man/man4/ng_mppc.4
@@ -188,5 +188,5 @@ However, Microsoft combined both compression and encryption into their
 .%T "Point-to-Point Tunneling Protocol (PPTP)"
 .%O RFC 2637
 .Re
-.Sh AUTHOR
+.Sh AUTHORS
 Archie Cobbs <archie@whistle.com>
diff --git a/share/man/man4/ng_pptpgre.4 b/share/man/man4/ng_pptpgre.4
index d63940d247b8..628769b26498 100644
--- a/share/man/man4/ng_pptpgre.4
+++ b/share/man/man4/ng_pptpgre.4
@@ -155,5 +155,5 @@ The
 .Nm
 node type was implemented in
 .Fx 4.0 .
-.Sh AUTHOR
+.Sh AUTHORS
 .An Archie Cobbs Aq archie@whistle.com
diff --git a/sys/modules/netgraph/iface/ng_iface.4 b/sys/modules/netgraph/iface/ng_iface.4
index c2a8becbd41f..74e3cdbfef18 100644
--- a/sys/modules/netgraph/iface/ng_iface.4
+++ b/sys/modules/netgraph/iface/ng_iface.4
@@ -149,5 +149,5 @@ The
 .Nm iface
 node type was implemented in
 .Fx 4.0 .
-.Sh AUTHOR
+.Sh AUTHORS
 .An Archie Cobbs Aq archie@whistle.com
diff --git a/sys/modules/netgraph/mppc/ng_mppc.4 b/sys/modules/netgraph/mppc/ng_mppc.4
index dc6e171dbcc4..3644efc169d2 100644
--- a/sys/modules/netgraph/mppc/ng_mppc.4
+++ b/sys/modules/netgraph/mppc/ng_mppc.4
@@ -188,5 +188,5 @@ However, Microsoft combined both compression and encryption into their
 .%T "Point-to-Point Tunneling Protocol (PPTP)"
 .%O RFC 2637
 .Re
-.Sh AUTHOR
+.Sh AUTHORS
 Archie Cobbs <archie@whistle.com>
diff --git a/sys/modules/netgraph/pptpgre/ng_pptpgre.4 b/sys/modules/netgraph/pptpgre/ng_pptpgre.4
index d63940d247b8..628769b26498 100644
--- a/sys/modules/netgraph/pptpgre/ng_pptpgre.4
+++ b/sys/modules/netgraph/pptpgre/ng_pptpgre.4
@@ -155,5 +155,5 @@ The
 .Nm
 node type was implemented in
 .Fx 4.0 .
-.Sh AUTHOR
+.Sh AUTHORS
 .An Archie Cobbs Aq archie@whistle.com