diff --git a/devel/rubygem-rdoc/Makefile b/devel/rubygem-rdoc/Makefile
index bb2ed702001c..1d7b5cbfc8fb 100644
--- a/devel/rubygem-rdoc/Makefile
+++ b/devel/rubygem-rdoc/Makefile
@@ -1,35 +1,37 @@
 PORTNAME=	rdoc
 PORTVERSION=	6.3.2
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	ruby@FreeBSD.org
 COMMENT=	RDoc produces HTML and command-line documentation for Ruby projects
 
 LICENSE=	GPLv2 RUBY
 LICENSE_COMB=	dual
 LICENSE_FILE_RUBY=	${WRKSRC}/LICENSE.rdoc
 
-USES=		gem
+USES=		cpe gem
 USE_RUBY=	yes
 
 NO_ARCH=	yes
 
+CPE_VENDOR=	ruby-lang
+
 .include <bsd.port.pre.mk>
 
 .if ${RUBY_VER} >= 2.7
 PLIST_FILES=	bin/rdoc bin/ri share/man/man1/ri.1.gz
 
 post-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/share/man/man1
 	${INSTALL_DATA} ${WRKSRC}/man/ri.1 ${STAGEDIR}${PREFIX}/share/man/man1
 
 .elif ${RUBY_VER} == 2.6
 # WIP: rdoc wrapper script is installed by ruby port so far, see bug 241554, 237833
 post-install:
 	${RM} ${STAGEDIR}${PREFIX}/bin/rdoc ${STAGEDIR}${PREFIX}/bin/ri
 .else
 IGNORE=         ${PORTNAME} is included in lang/${RUBY_NAME}
 .endif
 
 .include <bsd.port.post.mk>