Index: head/textproc/2bsd-diff/Makefile
===================================================================
--- head/textproc/2bsd-diff/Makefile	(revision 492629)
+++ head/textproc/2bsd-diff/Makefile	(revision 492630)
@@ -1,26 +1,26 @@
 # Created by: risner@stdio.com
 # $FreeBSD$
 
 PORTNAME=	diff
 PORTVERSION=	2.11
 PORTREVISION=	1
 CATEGORIES=	textproc
-MASTER_SITES=	http://www.tribug.org/pub/tuhs/PDP-11/Distributions/ucb/2.11BSD/ \
+MASTER_SITES=	https://www.tuhs.org/Archive/Distributions/UCB/2.11BSD/ \
 		http://www.d20hobbies.com/2.11BSD/
 PKGNAMEPREFIX=	2bsd-
 DISTNAME=	file8
 
 MAINTAINER=	risner@stdio.com
 COMMENT=	2.11BSD diff utility
 
 CFLAGS+=	-Wno-error=return-type
 EXTRACT_AFTER_ARGS=	bin/diff man/man1/diff.1
 WRKSRC=		${WRKDIR}/bin/diff
 
 PLIST_FILES=	bin/2diff libexec/2diffh man/man1/2diff.1.gz
 
 post-patch:
 	@${REINPLACE_CMD} -e 's,%%PREFIX%%,${PREFIX},g' \
 				${WRKSRC}/../../man/man1/diff.1
 
 .include <bsd.port.mk>