Index: head/devel/mutagen/Makefile
===================================================================
--- head/devel/mutagen/Makefile	(revision 510834)
+++ head/devel/mutagen/Makefile	(revision 510835)
@@ -1,49 +1,48 @@
 # $FreeBSD$
 
 PORTNAME=	mutagen
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.9.2
 CATEGORIES=	devel net
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Continuous multidirectional synchronization for remote development
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		go
+USES=		go:modules
 USE_GITHUB=	yes
 GH_ACCOUNT=	havoc-io
 GH_TUPLE=	\
 		bmatcuk:doublestar:85a7880:doublestar/vendor/github.com/bmatcuk/doublestar \
 		BurntSushi:toml:3012a1d:toml/vendor/github.com/BurntSushi/toml \
 		dustin:go-humanize:9f541cc:go_humanize/vendor/github.com/dustin/go-humanize \
 		fatih:color:3f9d52f:color/vendor/github.com/fatih/color \
 		havoc-io:gopass:9a121be:gopass/vendor/github.com/havoc-io/gopass \
 		golang:crypto:3cb0727:golang_crypto/vendor/golang.org/x/crypto \
 		golang:net:461777f:net/vendor/golang.org/x/net \
 		golang:protobuf:v1.3.1:protobuf/vendor/github.com/golang/protobuf \
 		golang:sys:f49334f85ddc:golang_sys/vendor/golang.org/x/sys \
 		golang:text:17ff2d5:golang_text/vendor/golang.org/x/text \
 		google:go-genproto:02b4e95:go_genproto/vendor/google.golang.org/genproto \
 		google:uuid:v1.1.1:uuid/vendor/github.com/google/uuid \
 		grpc:grpc-go:v1.19.0:grpc_grpc_go/vendor/google.golang.org/grpc \
 		kubernetes:apimachinery:2b1284ed4c93:kubernetes_apimachinery/vendor/k8s.io/apimachinery \
 		kubernetes:klog:8139d8cb77af:kubernetes_klog/vendor/k8s.io/klog \
 		mattn:go-colorable:v0.1.1:go_colorable/vendor/github.com/mattn/go-colorable \
 		mattn:go-isatty:v0.0.7:go_isatty/vendor/github.com/mattn/go-isatty \
 		pkg:errors:v0.8.1:errors/vendor/github.com/pkg/errors \
 		shibukawa:extstat:4113c04:extstat/vendor/github.com/shibukawa/extstat \
 		spf13:cobra:v0.0.3:spf13_cobra/vendor/github.com/spf13/cobra \
 		spf13:pflag:v1.0.3:spf13_pflag/vendor/github.com/spf13/pflag
 
-GO_PKGNAME=	github.com/${GH_ACCOUNT}/${PORTNAME}
-GO_TARGET=	${GO_PKGNAME}/cmd/mutagen \
-		${GO_PKGNAME}/cmd/mutagen-agent \
-		${GO_PKGNAME}/pkg/daemon/locktest
+GO_TARGET=	./cmd/mutagen \
+		./cmd/mutagen-agent \
+		./pkg/daemon/locktest
 
 PLIST_FILES=	bin/mutagen \
 		bin/mutagen-agent \
 		bin/locktest
 
 .include <bsd.port.mk>