Index: head/net-mgmt/blackbox_exporter/Makefile
===================================================================
--- head/net-mgmt/blackbox_exporter/Makefile	(revision 508965)
+++ head/net-mgmt/blackbox_exporter/Makefile	(revision 508966)
@@ -1,41 +1,38 @@
 # Created by: Boris Samorodov <bsam@FreeBSDD.org>
 # $FreeBSD$
 
 PORTNAME=	blackbox_exporter
 PORTVERSION=	0.13.0
 DISTVERSIONPREFIX=v
 CATEGORIES=	net-mgmt
 
 MAINTAINER=	bsam@FreeBSD.org
 COMMENT=	Prometheus exporter for endpoints over HTTP(S), DNS, TCP and ICMP
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		go
+USES=		go:modules
+
 USE_GITHUB=	yes
 GH_ACCOUNT=	prometheus
 USE_RC_SUBR=	blackbox_exporter
 
 USERS=		prometheus
 GROUPS=		prometheus
 
-GO_PKGNAME=	github.com/${GH_ACCOUNT}/${PORTNAME}
-GO_TARGET=	github.com/${GH_ACCOUNT}/${PORTNAME}
-
 PORTEXAMPLES=	${WRKSRC}/*.yml
 
 OPTIONS_DEFINE=	EXAMPLES
 
 SUB_FILES=	pkg-message
 SUB_LIST=	GH_TAGNAME=${GH_TAGNAME}
 PLIST_FILES=	bin/blackbox_exporter \
 		${EXAMPLESDIR}/blackbox.yml \
 		${EXAMPLESDIR}/example.yml
 
-do-install:
-	${INSTALL_PROGRAM} ${WRKDIR}/bin/${PORTNAME} ${STAGEDIR}${PREFIX}/bin
+post-install:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	${INSTALL_DATA} ${WRKSRC}/*.yml ${STAGEDIR}${EXAMPLESDIR}
 
 .include <bsd.port.mk>