diff --git a/textproc/docbook2mdoc/Makefile b/textproc/docbook2mdoc/Makefile
index 040c6c8b55f7..e1449af5ed19 100644
--- a/textproc/docbook2mdoc/Makefile
+++ b/textproc/docbook2mdoc/Makefile
@@ -1,18 +1,20 @@
 PORTNAME=	docbook2mdoc
 PORTVERSION=	1.1.0
 PORTREVISION=	1
 CATEGORIES=	textproc
 MASTER_SITES=	http://mdocml.bsd.lv/docbook2mdoc/snapshots/
 
 MAINTAINER=	bapt@FreeBSD.org
 COMMENT=	Convert DocBook refentry to mdoc
 WWW=		https://mdocml.bsd.lv/docbook2mdoc/
 
 LICENSE=	ISCL
 
+USES=	tar:tgz
+
 PLIST_FILES=	bin/docbook2mdoc \
 		man/man1/docbook2mdoc.1.gz
 
-USES=	tar:tgz
+MAKE_ARGS=	PREFIX="${PREFIX}"
 
 .include <bsd.port.mk>