Index: head/devel/py-smmap2/Makefile
===================================================================
--- head/devel/py-smmap2/Makefile	(revision 456449)
+++ head/devel/py-smmap2/Makefile	(revision 456450)
@@ -1,21 +1,23 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	smmap2
 PORTVERSION=	2.0.3
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Sliding-window memory map manager
 
 LICENSE=	BSD3CLAUSE
 
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}nose>=0:devel/py-nose@${FLAVOR}
 
+CONFLICTS_INSTALL=	${PYTHON_PKGNAMEPREFIX}smmap
+
 NO_ARCH=	yes
 USE_PYTHON=	autoplist concurrent distutils
 USES=		python
 
 .include <bsd.port.mk>