diff --git a/misc/dtach/Makefile b/misc/dtach/Makefile
index 7c474ac10f98..ec379714edcd 100644
--- a/misc/dtach/Makefile
+++ b/misc/dtach/Makefile
@@ -10,6 +10,9 @@ MASTER_SITES=	SF
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Emulates the detach feature of screen
 
+LICENSE=	GPLv2 # or later
+LICENSE_FILE=	${WRKSRC}/COPYING
+
 GNU_CONFIGURE=	yes
 ALL_TARGET=	dtach
 
@@ -18,8 +21,6 @@ PLIST_FILES=	bin/dtach man/man1/dtach.1.gz
 
 OPTIONS_DEFINE=	DOCS
 
-.include <bsd.port.options.mk>
-
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/dtach ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_MAN} ${WRKSRC}/dtach.1 ${STAGEDIR}${MANPREFIX}/man/man1