Index: head/devel/rubygem-flipper010/Makefile
===================================================================
--- head/devel/rubygem-flipper010/Makefile	(revision 455056)
+++ head/devel/rubygem-flipper010/Makefile	(revision 455057)
@@ -1,22 +1,24 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	flipper
 PORTVERSION=	0.10.2
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 PKGNAMESUFFIX=	010
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Act of enabling/disabling features in your application
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+CONFLICTS_INSTALL=	rubygem-flipper
+
 PORTSCOUT=	limit:^0\.10\.
 
 NO_ARCH=	yes
-USE_RUBY=	yes
 USES=		gem
+USE_RUBY=	yes
 
 .include <bsd.port.mk>