diff --git a/math/py-pplpy/Makefile b/math/py-pplpy/Makefile
index 23609b05f858..693a73d512ae 100644
--- a/math/py-pplpy/Makefile
+++ b/math/py-pplpy/Makefile
@@ -1,39 +1,39 @@
 # Created by: thierry@pompo.net
 # $FreeBSD$
 
 PORTNAME=	pplpy
 DISTVERSION=	0.8.4
 CATEGORIES=	math python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	thierry@FreeBSD.org
 COMMENT=	Python wrapper to the C++ Parma Polyhedra Library (PPL)
 
 LICENSE=	GPLv3
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}gmpy2-devel>0:math/py-gmpy2-devel@${PY_FLAVOR}	\
 		${PYTHON_PKGNAMEPREFIX}cysignals>0:devel/py-cysignals@${PY_FLAVOR}
 LIB_DEPENDS=	libgmp.so:math/gmp	\
 		libmpfr.so:math/mpfr	\
 		libmpc.so:math/mpc	\
 		libppl.so:devel/ppl
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}gmpy2-devel>0:math/py-gmpy2-devel@${PY_FLAVOR}	\
 		${PYTHON_PKGNAMEPREFIX}cysignals>0:devel/py-cysignals@${PY_FLAVOR}
 
-USES=		localbase python:3.6+
+USES=		compiler:c++11-lang localbase python:3.6+
 USE_PYTHON=	cython distutils
 
 OPTIONS_DEFINE=		DOCS
 DOCS_BUILD_DEPENDS=	${PY_SPHINX}
 DOCS_USES=		gmake
 PORTDOCS=		*
 
 do-build-DOCS-on:
 	(cd ${WRKSRC}/docs && ${GMAKE} html)
 
 post-build-DOCS-on:
 	${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${CP} -R ${WRKSRC}/docs/build/html/* ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>