diff --git a/www/rubygem-sinatra/Makefile b/www/rubygem-sinatra/Makefile
index c93084104134..3926dec03138 100644
--- a/www/rubygem-sinatra/Makefile
+++ b/www/rubygem-sinatra/Makefile
@@ -1,24 +1,25 @@
 # Created by: Daniel Roethlisberger <daniel@roe.ch>
 
 PORTNAME=	sinatra
 PORTVERSION=	2.1.0
 CATEGORIES=	www rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Classy web development framework in ruby
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	rubygem-mustermann>=1.0<2:devel/rubygem-mustermann \
 		rubygem-rack>=2.2,3<3,3:www/rubygem-rack \
 		rubygem-rack-protection>=${PORTVERSION}:www/rubygem-rack-protection \
 		rubygem-tilt>=2.0<3:devel/rubygem-tilt
 
-USES=		gem
+USES=		cpe gem
+CPE_VENDOR=	${PORTNAME}rb
 USE_RUBY=	yes
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>