diff --git a/science/phonopy/Makefile b/science/phonopy/Makefile
index f1f7a48f31f5..ab3fdc335cb7 100644
--- a/science/phonopy/Makefile
+++ b/science/phonopy/Makefile
@@ -1,26 +1,29 @@
 PORTNAME=	phonopy
 DISTVERSIONPREFIX=	v
 DISTVERSION=	2.17.2
 CATEGORIES=	science python
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Package for phonon calculations at harmonic and quasi-harmonic levels
 WWW=		https://phonopy.github.io/phonopy/
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		cmake
+.if !exists(/usr/local/omp.h)
+USES+=		compiler:gcc-c++11-lib
+.endif
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 
 CMAKE_ON=	PHONOPY BUILD_SHARED_LIBRARIES
 
 PLIST_FILES=	include/phonopy.h \
 		lib/libphpy.a \
 		lib/libphpy.so \
 		lib/libphpy.so.1 \
 		lib/libphpy.so.${DISTVERSION}
 
 .include <bsd.port.mk>