diff --git a/sbin/fdisk/fdisk.8 b/sbin/fdisk/fdisk.8
index 5312c666c373..bbee59994c7a 100644
--- a/sbin/fdisk/fdisk.8
+++ b/sbin/fdisk/fdisk.8
@@ -1,4 +1,4 @@
-.\"	$NetBSD: fdisk.8,v 1.31 2002/10/01 13:40:29 wiz Exp $
+.\"	$NetBSD: fdisk.8,v 1.32 2003/02/09 20:46:29 perry Exp $
 .\"
 .Dd December 19, 2000
 .Dt FDISK 8
@@ -174,7 +174,13 @@ It is used only in conjunction with the
 .Fl u
 flag.
 .It Fl B
-Install or update the bootselect code on an i386 machine.
+On an i386 or x86_64 system, interactively install or update the
+boot selector code and settings. 
+(The boot selector permits the user to interactively select the boot
+partition, and thus which operating system is run, at system boot time.
+See 
+.Xr mbr 8
+for more information.)
 .It Fl c Ar bootcode
 Specify the filename that
 .Nm