diff --git a/lib/libc/sys/sigprocmask.2 b/lib/libc/sys/sigprocmask.2
index 9dedfeb4a7b2..0504d51061e4 100644
--- a/lib/libc/sys/sigprocmask.2
+++ b/lib/libc/sys/sigprocmask.2
@@ -1,4 +1,4 @@
-.\"	$NetBSD: sigprocmask.2,v 1.21 2006/01/06 02:30:08 uwe Exp $
+.\"	$NetBSD: sigprocmask.2,v 1.22 2006/01/07 20:11:30 kleink Exp $
 .\"
 .\" Copyright (c) 1983, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -111,6 +111,7 @@ has a value other than those listed here.
 .Xr kill 2 ,
 .Xr sigaction 2 ,
 .Xr sigsuspend 2 ,
+.Xr pthread_sigmask 3 ,
 .Xr sigsetops 3 ,
 .Xr signal 7
 .Sh STANDARDS