diff --git a/sbin/geom/class/part/gpart.8 b/sbin/geom/class/part/gpart.8
index 74968b452b6a..d2611357ee4f 100644
--- a/sbin/geom/class/part/gpart.8
+++ b/sbin/geom/class/part/gpart.8
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 12, 2011
+.Dd January 28, 2011
 .Dt GPART 8
 .Os
 .Sh NAME
@@ -509,6 +509,11 @@ utility also allows the user to specify scheme-specific partition types
 for partition types that do not have symbol names.
 The symbolic names currently understood are:
 .Bl -tag -width ".Cm freebsd-vinum"
+.It Cm bios-boot
+The system partition dedicated to second stage of the boot loader program.
+Usually it used by GRUB 2 loader when the partition table is GPT.
+The scheme-specific type is
+.Qq Li "!21686148-6449-6E6F-744E-656564454649" .
 .It Cm efi
 The system partition for computers that use the Extensible Firmware
 Interface (EFI).