diff --git a/textproc/diffmark/Makefile b/textproc/diffmark/Makefile
index c0845d56cbe8..b244d87a2d48 100644
--- a/textproc/diffmark/Makefile
+++ b/textproc/diffmark/Makefile
@@ -1,25 +1,29 @@
 PORTNAME=	diffmark
 PORTVERSION=	0.10
 PORTREVISION=	4
 CATEGORIES=	textproc
 MASTER_SITES=	http://www.mangrove.cz/diffmark/ \
 		http://penguin.cz/~vbarta/diffmark/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	XML diff and merge package
 WWW=		http://www.mangrove.cz/diffmark/
 
+BROKEN=		Unfetchable
+DEPRECATED=	Fails to build with libxml2 2.13.0 (PR 279705)
+EXPIRATION_DATE=2024-07-16
+
 USES=		gnome libtool pkgconfig
 USE_GNOME=	libxml2
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 USE_LDCONFIG=	yes
 
 CPPFLAGS+=	-I${LOCALBASE}/include
 LDFLAGS+=	-L${LOCALBASE}/lib
 
 post-patch:
 	@${REINPLACE_CMD} -e \
 		's|-lstdc++||' ${WRKSRC}/lib/Makefile.in
 
 .include <bsd.port.mk>