diff --git a/lib/libc/stdio/vswscanf.c b/lib/libc/stdio/vswscanf.c
index e5a2ab223929..6e54dade0eb3 100644
--- a/lib/libc/stdio/vswscanf.c
+++ b/lib/libc/stdio/vswscanf.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: vswscanf.c,v 1.2 2005/11/29 03:12:00 christos Exp $	*/
+/*	$NetBSD: vswscanf.c,v 1.3 2005/12/02 13:51:22 yamt Exp $	*/
 
 /*-
  * Copyright (c) 1990, 1993
@@ -42,7 +42,7 @@
 static char sccsid[] = "@(#)vsscanf.c	8.1 (Berkeley) 6/4/93";
 __FBSDID("$FreeBSD: src/lib/libc/stdio/vswscanf.c,v 1.3 2004/04/07 09:55:05 tjr Exp $");
 #else
-__RCSID("$NetBSD: vswscanf.c,v 1.2 2005/11/29 03:12:00 christos Exp $");
+__RCSID("$NetBSD: vswscanf.c,v 1.3 2005/12/02 13:51:22 yamt Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -85,8 +85,7 @@ vswscanf(const wchar_t * __restrict str, const wchar_t * __restrict fmt,
 	if ((mbstr = malloc(wcslen(str) * MB_CUR_MAX + 1)) == NULL)
 		return (EOF);
 	mbs = initial;
-	if ((mlen = wcsrtombs(mbstr, __UNCONST(&rstr),
-	    SIZE_T_MAX, &mbs)) == (size_t)-1) {
+	if ((mlen = wcsrtombs(mbstr, &rstr, SIZE_T_MAX, &mbs)) == (size_t)-1) {
 		free(mbstr);
 		return (EOF);
 	}