diff --git a/usr.bin/vis/vis.c b/usr.bin/vis/vis.c
index e2677493e145..003cbdc29a8f 100644
--- a/usr.bin/vis/vis.c
+++ b/usr.bin/vis/vis.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: vis.c,v 1.16 2013/02/13 04:52:31 christos Exp $	*/
+/*	$NetBSD: vis.c,v 1.17 2013/02/13 13:58:44 christos Exp $	*/
 
 /*-
  * Copyright (c) 1989, 1993
@@ -39,12 +39,13 @@ __COPYRIGHT("@(#) Copyright (c) 1989, 1993\
 #if 0
 static char sccsid[] = "@(#)vis.c	8.1 (Berkeley) 6/6/93";
 #endif
-__RCSID("$NetBSD: vis.c,v 1.16 2013/02/13 04:52:31 christos Exp $");
+__RCSID("$NetBSD: vis.c,v 1.17 2013/02/13 13:58:44 christos Exp $");
 #endif /* not lint */
 
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include <errno.h>
 #include <wchar.h>
 #include <unistd.h>
 #include <err.h>
@@ -162,8 +163,12 @@ process(FILE *fp)
 	char buff[5];
 	
 	c = getwc(fp);
-	while (c != EOF) {
+	if (c == WEOF && errno == EILSEQ)
+		c = (wint_t)getc(fp);
+	while (c != WEOF) {
 		rachar = getwc(fp);
+		if (rachar == WEOF && errno == EILSEQ)
+			rachar = (wint_t)getc(fp);
 		if (none) {
 			cp = buff;
 			*cp++ = c;