Index: head/sysutils/py-psutil/Makefile
===================================================================
--- head/sysutils/py-psutil/Makefile	(revision 395689)
+++ head/sysutils/py-psutil/Makefile	(revision 395690)
@@ -1,21 +1,21 @@
 # Created by: Ju Pengfei <jupengfei@gmail.com>
 # $FreeBSD$
 
 PORTNAME=	psutil
 PORTVERSION=	3.1.1
 CATEGORIES=	sysutils python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Process utilities module for Python
 
 LICENSE=	BSD3CLAUSE
 
-USE_PYTHON=	autoplist distutils
+USE_PYTHON=	autoplist concurrent distutils
 USES=		python
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PYTHON_SITELIBDIR}/psutil/_psutil_bsd.so ${STAGEDIR}${PYTHON_SITELIBDIR}/psutil/_psutil_posix.so
 
 .include <bsd.port.mk>