diff --git a/devel/dmucs/Makefile b/devel/dmucs/Makefile
index c824aff7cf41..a3f8f5004351 100644
--- a/devel/dmucs/Makefile
+++ b/devel/dmucs/Makefile
@@ -1,34 +1,37 @@
 PORTNAME=	dmucs
 PORTVERSION=	0.6.1
 PORTREVISION=	1
 CATEGORIES=	devel
 MASTER_SITES=	SF/${PORTNAME}/${PORTNAME}/${PORTNAME}%20${PORTVERSION}
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	Distributed Multi-User Compilation System (for use with distcc)
 WWW=		https://dmucs.sourceforge.net/
 
+DEPRECATED=	Unmaintained, upstream last release was in 2006
+EXPIRATION_DATE=2024-04-06
+
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BROKEN_aarch64=		fails to compile: passing char * to parameter of incompatible type __builtin_va_list
 BROKEN_armv6=		fails to compile: passing char * to parameter of incompatible type __builtin_va_list
 BROKEN_armv7=		fails to compile: passing char * to parameter of incompatible type __builtin_va_list
 
 USES=	tar:bzip2
 
 GNU_CONFIGURE=	yes
 
 WRKSRC=		${WRKDIR}/${PORTNAME}
 
 PLIST_FILES=	bin/dmucs bin/gethost bin/loadavg bin/monitor bin/remhost
 
 .include <bsd.port.pre.mk>
 
 post-patch:
 .if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400079 || ( ${OSVERSION} >= 1302505 && ${OSVERSION} < 1400000 ))
 	@${REINPLACE_CMD} -e 's|CFLAGS    = -O -I./HDR|CFLAGS=-Wno-error=int-conversion -O -I./HDR|' \
 		${WRKSRC}/COSMIC/Makefile
 .endif
 
 .include <bsd.port.post.mk>