diff --git a/share/man/man4/acpi.4 b/share/man/man4/acpi.4
index 01c6e81bab98..c310c840085e 100644
--- a/share/man/man4/acpi.4
+++ b/share/man/man4/acpi.4
@@ -1,4 +1,4 @@
-.\" $NetBSD: acpi.4,v 1.20 2006/03/11 11:57:18 wiz Exp $
+.\" $NetBSD: acpi.4,v 1.21 2006/03/25 12:34:16 rpaulo Exp $
 .\"
 .\" Copyright (c) 2002, 2004 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -31,7 +31,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd March 9, 2006
+.Dd March 25, 2006
 .Dt ACPI 4
 .Os
 .Sh NAME
@@ -54,6 +54,7 @@
 .Cd "npx*      at acpi?"
 .Cd "pckbc*    at acpi?"
 .Cd "pcppi*    at acpi?"
+.Cd "sony*     at acpi?"
 .Cd "spic*     at acpi?"
 .Cd "vald*     at acpi?"
 .Cd "wss*      at acpi?"
@@ -152,6 +153,8 @@ Windows Sound System-compatible sound cards based on the AD1848 and compatible c
 i386 numeric processing extension coprocessor.
 .It pckbc
 PC keyboard controllers.
+.It sony
+Sony Miscellaneous Controller
 .It spic
 Sony programmable I/O controller.
 .It vald
@@ -176,6 +179,7 @@ Toshiba Libretto device.
 .Xr pckbc 4 ,
 .Xr pcppi 4 ,
 .Xr spic 4 ,
+.Xr sony 4 ,
 .Xr vald 4 ,
 .Xr wss 4
 .Rs