diff --git a/sysutils/tmate/Makefile b/sysutils/tmate/Makefile
index af9fc51dddf8..fd24974aa3b2 100644
--- a/sysutils/tmate/Makefile
+++ b/sysutils/tmate/Makefile
@@ -1,35 +1,37 @@
 PORTNAME=	tmate
 PORTVERSION=	2.4.0
-PORTREVISION=	4
+PORTREVISION=	5
 CATEGORIES=	sysutils
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	Instant terminal sharing
 WWW=		https://tmate.io/
 
 LICENSE=	ISCL
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+DEPRECATED=            Upstream unmaintained
+EXPIRATION_DATE=       2026-03-31
+
 LIB_DEPENDS=	libevent.so:devel/libevent \
 		libmsgpackc.so:devel/msgpack-c \
 		libssh.so:security/libssh
 
 USES=		autoreconf compiler:c11 ncurses pkgconfig
 USE_GITHUB=	yes
 GH_ACCOUNT=	tmate-io
 USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=	yes
-GNU_CONFIGURE_MANPREFIX=${PREFIX}/share
 
 LDFLAGS+=	-lexecinfo
 
 PLIST_FILES=	bin/tmate share/man/man1/tmate.1.gz
 
 OPTIONS_DEFINE=	BACKSPACE
 
 BACKSPACE_DESC=	Build with tty/keys patch
 
 BACKSPACE_EXTRA_PATCHES=	${PATCHDIR}/extra-patch-tty-keys.c
 
 .include <bsd.port.mk>