diff --git a/lib/libc/string/strchr.3 b/lib/libc/string/strchr.3
index 70b569cc095a..242ac30edd69 100644
--- a/lib/libc/string/strchr.3
+++ b/lib/libc/string/strchr.3
@@ -34,7 +34,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     from: @(#)strchr.3	5.4 (Berkeley) 6/29/91
-.\"	$NetBSD: strchr.3,v 1.4 1997/10/09 10:08:57 lukem Exp $
+.\"	$NetBSD: strchr.3,v 1.5 1997/12/30 06:05:59 mikel Exp $
 .\"
 .Dd June 29, 1991
 .Dt STRCHR 3
@@ -54,7 +54,7 @@ function locates the first occurrence of
 in the string pointed to by
 .Ar s .
 The terminating
-.Dv NULL
+.Dv NUL
 character is considered part of the string.
 If
 .Fa c