diff --git a/devel/dia2code+/Makefile b/devel/dia2code+/Makefile
index 85ab2c3db9b9..305e9f70536d 100644
--- a/devel/dia2code+/Makefile
+++ b/devel/dia2code+/Makefile
@@ -1,34 +1,37 @@
 PORTNAME=	dia2code+
 PORTVERSION=	1.0.0
 PORTREVISION=	10
 CATEGORIES=	devel
 MASTER_SITES=	SF/dia2code/dia2code+/${PORTVERSION}
 DISTNAME=	dia2code-${PORTVERSION}
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	Complete rewrite of dia2code in C++
 WWW=		https://dia2code.sourceforge.net/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+DEPRECATED=	Fails to build with libxml2 2.13.0 (PR 279759)
+EXPIRATION_DATE=2024-07-16
+
 USES=		autoreconf:build compiler:c++11-lib gnome iconv
 USE_GNOME=	libxml2
 GNU_CONFIGURE=	yes
 
 CPPFLAGS+=	-I${LOCALBASE}/include
 LDFLAGS+=	-L${LOCALBASE}/lib
 
 CONFLICTS_INSTALL=	dia2code
 
 PLIST_FILES=	bin/dia2code \
 		share/man/man1/dia2code.1.gz
 
 post-patch:
 	@${REINPLACE_CMD} '/dia2code_CXXFLAGS =/ s,-fprofile-arcs,,' \
 		${WRKSRC}/src/Makefile.in
 
 post-install:
 	${INSTALL_MAN} ${WRKSRC}/docs/dia2code.1 ${STAGEDIR}${PREFIX}/share/man/man1
 
 .include <bsd.port.mk>