1 files changed, 8 insertions, 1 deletions
diff --git a/sbin/reboot/nextboot.8 b/sbin/reboot/nextboot.8
index df46a0c..d006c3f 100644
--- a/sbin/reboot/nextboot.8
+++ b/sbin/reboot/nextboot.8
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd March 17, 2015
+.Dd April 9, 2016
 .Dt NEXTBOOT 8
 .Os
 .Sh NAME
@@ -32,6 +32,7 @@
 .Nd "specify an alternate kernel and boot flags for the next reboot"
 .Sh SYNOPSIS
 .Nm
+.Op Fl a
 .Op Fl e Ar variable=value
 .Op Fl f
 .Op Fl k Ar kernel
@@ -53,6 +54,12 @@ configuration.
 .Pp
 The options are as follows:
 .Bl -tag -width ".Fl o Ar options"
+.It Fl a
+This option causes
+.Nm
+to append to an existing configuration in
+.Pa /boot/nextboot.conf .
+By default any existing configuration is overwritten.
 .It Fl D
 Invoking
 .Nm