diff --git a/misc/viz/Makefile b/misc/viz/Makefile
index 353a577576cc..38243420aef2 100644
--- a/misc/viz/Makefile
+++ b/misc/viz/Makefile
@@ -1,25 +1,25 @@
 PORTNAME=	viz
 PORTVERSION=	1.1.1
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	misc
 MASTER_SITES=	LOCAL/fenner
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Convert invisible (binary) characters to a visible form
 
 LICENSE=	GPLv1
 LICENSE_FILE=	${WRKSRC}/Copying
 
 USES=		tar:tgz
 
 MAKE_ARGS=	CC="${CC}" DEFS="${CFLAGS}"
 
 PLIST_FILES=	bin/viz bin/inviz share/man/man1/viz.1.gz share/man/man1/inviz.1.gz
 
 do-install:
 .for f in viz inviz
 	${INSTALL_PROGRAM} ${WRKSRC}/${f} ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_MAN} ${WRKSRC}/${f}.1 ${STAGEDIR}${PREFIX}/share/man/man1
 .endfor
 
 .include <bsd.port.mk>
diff --git a/misc/viz/files/patch-lists.c b/misc/viz/files/patch-lists.c
new file mode 100644
index 000000000000..db88c0b0baf6
--- /dev/null
+++ b/misc/viz/files/patch-lists.c
@@ -0,0 +1,13 @@
+--- lists.c.orig
++++ lists.c
+@@ -6,10 +6,6 @@
+ 
+ #include "viz.h"
+ 
+-extern errno;
+-
+-extern char *malloc();
+-
+ void
+ printlist(level, list)
+ int level;
diff --git a/misc/viz/files/patch-loadfile.c b/misc/viz/files/patch-loadfile.c
new file mode 100644
index 000000000000..19309738ea8d
--- /dev/null
+++ b/misc/viz/files/patch-loadfile.c
@@ -0,0 +1,13 @@
+--- loadfile.c.orig
++++ loadfile.c
+@@ -1,9 +1,8 @@
++#include <errno.h>
+ #include <stdio.h>
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #include <sys/fcntl.h>
+-
+-extern errno;
+ 
+ char *loadfile(path)
+ char *path;