diff --git a/textproc/docbook-xml/Makefile b/textproc/docbook-xml/Makefile
index 4171b93a2b6c..cdde3890d356 100644
--- a/textproc/docbook-xml/Makefile
+++ b/textproc/docbook-xml/Makefile
@@ -1,67 +1,72 @@
 PORTNAME=	docbook
 PORTVERSION=	5.0
 PORTREVISION=	3
 CATEGORIES=	textproc
 MASTER_SITES=	${DBFILES:C,(.*):(.*),https://docbook.org/xml/\1/:\2,:C,:docbook-xml-([0-9]+).([0-9]+).?([0-9]*),:db\1\2\3,:C,:docbook-([0-9]+).([0-9]+).?([0-9]*),:db\1\2\3,}
 PKGNAMESUFFIX=	-xml
 DISTFILES=	${DBFILES:C,.*:(.*),\1.zip:\1,:C,:docbook-xml-([0-9]+).([0-9]+).?([0-9]*),:db\1\2\3,:C,:docbook-([0-9]+).([0-9]+).?([0-9]*),:db\1\2\3,}
 
 MAINTAINER=	doceng@FreeBSD.org
 COMMENT=	DocBook XML DTD
 WWW=		https://www.oasis-open.org/docbook/
 
+LICENSE=	DOCBOOK
+LICENSE_NAME=	DocBook License
+LICENSE_FILE=	${FILESDIR}/LICENSE
+LICENSE_PERMS=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
+
 BUILD_DEPENDS=	${LOCALBASE}/share/xml/xmlcharent/catalog.xml:textproc/xmlcharent \
 		xmlcatmgr:textproc/xmlcatmgr
 RUN_DEPENDS=	${LOCALBASE}/share/xml/xmlcharent/catalog.xml:textproc/xmlcharent \
 		xmlcatmgr:textproc/xmlcatmgr
 
 NO_ARCH=	yes
 NO_BUILD=	yes
 
 DBFILES=4.1.2:docbkx412 4.2:docbook-xml-4.2 4.3:docbook-xml-4.3 \
 	4.4:docbook-xml-4.4 4.5:docbook-xml-4.5 5.0:docbook-5.0
 
 DBKDIR=		share/xml/docbook
 DBCAT_XML=	${PREFIX}/${DBKDIR}/catalog.xml
 DBCAT_SGML=	${PREFIX}/${DBKDIR}/catalog
 PLIST_SUB=	DBKDIR=${DBKDIR}
 
 do-extract:
 	@${RM} -r ${WRKDIR}
 	@${MKDIR} ${WRKDIR}
 .for df in ${DISTFILES:C,:.*,,}
 	@cd ${WRKDIR} && ${TAR} \
 		${EXTRACT_BEFORE_ARGS} ${DISTDIR}/${df} \
 		${EXTRACT_AFTER_ARGS} -s ,^,${df:R}/,
 .endfor
 
 post-extract:
 	@${MV} ${WRKDIR}/docbook-5.0/docbook-5.0/* ${WRKDIR}/docbook-5.0
 	@${RMDIR} ${WRKDIR}/docbook-5.0/docbook-5.0
 
 pre-install:
 	@${MKDIR} ${STAGEDIR}${PREFIX}/${DBKDIR}
 	${ECHO_CMD} "CATALOG \"${LOCALBASE}/share/xml/xmlcharent/catalog\"" \
 	    > ${STAGEDIR}${DBCAT_SGML}
 	xmlcatmgr -c ${STAGEDIR}${DBCAT_XML} create
 	xmlcatmgr -c ${STAGEDIR}${DBCAT_XML} \
 	    add nextCatalog "${LOCALBASE}/share/xml/xmlcharent/catalog.xml"
 
 .for D in ${DBFILES:C,:.*,,}
 do-install-${D:S/./_/g}:
 	@${MKDIR} ${STAGEDIR}${PREFIX}/${DBKDIR}/$D
 	cd ${WRKDIR}/${DBFILES:M${D}\:*:C,.*:,,} && \
 	    ${COPYTREE_SHARE} . ${STAGEDIR}${PREFIX}/${DBKDIR}/$D
 	xmlcatmgr -c ${STAGEDIR}${DBCAT_XML} \
 	    add nextCatalog "${PREFIX}/${DBKDIR}/$D/catalog.xml"
 	test "$D" = 5.0 || test "$D" = 4.1.2 || \
 	    ${ECHO_CMD} "CATALOG \"${PREFIX}/${DBKDIR}/$D/docbook.cat\"" \
 	    >> ${STAGEDIR}${DBCAT_SGML}
 do-install: do-install-${D:S/./_/g}
 .endfor
 
 post-install:
 	${INSTALL_DATA} ${FILESDIR}/catalog412.xml \
 	    ${STAGEDIR}${PREFIX}/${DBKDIR}/4.1.2/catalog.xml
 
 .include <bsd.port.mk>
diff --git a/textproc/docbook-xml/files/LICENSE b/textproc/docbook-xml/files/LICENSE
new file mode 100644
index 000000000000..dacf3d3768ed
--- /dev/null
+++ b/textproc/docbook-xml/files/LICENSE
@@ -0,0 +1,24 @@
+(Excerpt from docbook-5.0/rng/docbook.rng)
+
+Copyright 1992-2008 HaL Computer Systems, Inc.,
+O'Reilly & Associates, Inc., ArborText, Inc., Fujitsu Software
+Corporation, Norman Walsh, Sun Microsystems, Inc., and the
+Organization for the Advancement of Structured Information
+Standards (OASIS).
+
+Permission to use, copy, modify and distribute the DocBook schema
+and its accompanying documentation for any purpose and without fee
+is hereby granted in perpetuity, provided that the above copyright
+notice and this paragraph appear in all copies. The copyright
+holders make no representation about the suitability of the schema
+for any purpose. It is provided "as is" without expressed or implied
+warranty.
+
+If you modify the DocBook schema in any way, label your schema as a
+variant of DocBook. See the reference documentation
+(http://docbook.org/tdg5/en/html/ch05.html#s-notdocbook)
+for more information.
+
+Please direct all questions, bug reports, or suggestions for changes
+to the docbook@lists.oasis-open.org mailing list. For more
+information, see http://www.oasis-open.org/docbook/.