diff --git a/math/faiss/Makefile b/math/faiss/Makefile
index c1aede497daa..9fdcc065a48a 100644
--- a/math/faiss/Makefile
+++ b/math/faiss/Makefile
@@ -1,23 +1,27 @@
 PORTNAME=	faiss
 DISTVERSIONPREFIX=	v
 DISTVERSION=	1.7.2
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Library for efficient similarity search & clustering of dense vectors
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+.if !exists(/usr/include/omp.h)
+BROKEN=		requires OpenMP support that is missing on this architecture
+.endif
+
 BUILD_DEPENDS=	openblas>0:math/openblas # faiss links with libopenblasp-rN.N.N.so (installed by default only on amd64,i386), so use non-filename-specific DEPENDS commands
 RUN_DEPENDS=	openblas>0:math/openblas
 
 USES=		cmake:testing compiler:c++11-lang
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	facebookresearch
 
 CMAKE_ON=	BUILD_SHARED_LIBS
 CMAKE_OFF=	BUILD_TESTING FAISS_ENABLE_GPU FAISS_ENABLE_PYTHON
 
 .include <bsd.port.mk>