diff --git a/games/flightgear-mb339-pan/Makefile b/games/flightgear-mb339-pan/Makefile
index 99fbda22f88b..c5890ae9db31 100644
--- a/games/flightgear-mb339-pan/Makefile
+++ b/games/flightgear-mb339-pan/Makefile
@@ -1,46 +1,49 @@
 PORTNAME=	flightgear-mb339-pan
 PORTVERSION=	2.1
 PORTREVISION=	3
 CATEGORIES=	games
 MASTER_SITES=	http://hcilab.uniud.it/pan/downloads/
 DISTNAME=	mb339pan_${PORTVERSION}
 
 MAINTAINER=	martymac@FreeBSD.org
 COMMENT=	Simulation of the MB-339 PAN aerobatic jet
 WWW=		http://hcilab.uniud.it/pan/
 
 # Converted from RESTRICTED
 LICENSE=	mb339
 LICENSE_NAME=	mb339
 LICENSE_TEXT=	Redistribution prohibited
 LICENSE_PERMS=	auto-accept
 
+DEPRECATED=	Upstream is inactive for 15+ years
+EXPIRATION_DATE=	2026-05-01
+
 RUN_DEPENDS=	${LOCALBASE}/share/flightgear/version:games/flightgear-data
 
 NO_BUILD=	yes
 USES=		zip
 WRKSRC=	${WRKDIR}/${PORTNAME}
 EXTRACT_AFTER_ARGS=	-d ${WRKSRC}
 DATADIR=	${PREFIX}/share/flightgear/Aircraft
 
 PLIST=		${WRKDIR}/pkg-plist
 PLIST_DIRS=	%%DATADIR%%
 
 pre-extract:
 	@${MKDIR} ${WRKSRC}
 
 pre-install:
 	@${RM} ${PLIST}
 	@cd ${WRKSRC} && \
 	${FIND} * -type d -empty | ${SORT} \
 		| ${SED} -e 's|^|@preexec ${MKDIR} %D/share/flightgear/Aircraft/|' >> ${PLIST} && \
 	${FIND} * -type f | ${SORT} \
 		| ${SED} -e 's|^|%%DATADIR%%/|' >> ${PLIST} && \
 	${FIND} * -type d -empty | ${SORT} -r \
 		| ${SED} -e 's|^|@dir %%DATADIR%%/|' >> ${PLIST}
 
 do-install:
 	${MKDIR} ${STAGEDIR}${DATADIR}
 	(cd ${WRKSRC}/ && ${COPYTREE_SHARE} . ${STAGEDIR}${DATADIR})
 
 .include <bsd.port.mk>