diff --git a/misc/opennn/Makefile b/misc/opennn/Makefile
index eeb1be32033e..9b9cb4b041dd 100644
--- a/misc/opennn/Makefile
+++ b/misc/opennn/Makefile
@@ -1,46 +1,48 @@
 PORTNAME=	opennn
 DISTVERSIONPREFIX=	v
 DISTVERSION=	6.0.4
 CATEGORIES=	misc # machine-learning
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Open neural networks library
 WWW=		https://www.opennn.net/
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
+BROKEN_armv7=	gcc13 fails: error: use of built-in trait '__remove_cvref(_InIter1)' in function signature, see https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278630
+
 USES=		cmake:testing dos2unix
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	Artelnics
 
 DOS2UNIX_FILES=	opennn/CMakeLists.txt
 
 CMAKE_ON=	BUILD_SHARED_LIBS
 CMAKE_OFF=	OpenNN_BUILD_EXAMPLES OpenNN_BUILD_TESTS
 CMAKE_TESTING_ON=	OpenNN_BUILD_TESTS # some tests fail, see https://github.com/Artelnics/opennn/issues/229
 CMAKE_TESTING_TARGET=	tests
 
 CXXFLAGS_powerpc64=	-mvsx
 LDFLAGS+=	-pthread
 LDFLAGS_powerpc=	-latomic
 
 .if !exists(/usr/include/omp.h)
 LDFLAGS+=	-fopenmp
 USES+=		compiler:gcc-c++11-lib
 .else
 LDFLAGS+=	-lomp # https://github.com/Artelnics/opennn/issues/182
 USES+=		compiler:c++11-lang
 .endif
 
 do-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/include/${PORTNAME} && ${INSTALL_DATA} ${WRKSRC}/${PORTNAME}/*.h ${STAGEDIR}${PREFIX}/include/${PORTNAME}
 	${INSTALL_DATA} ${BUILD_WRKSRC}/${PORTNAME}/libopennn.so ${STAGEDIR}${PREFIX}/lib
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/libopennn.so
 
 post-test:
 	@cd ${TEST_WRKSRC} && (${ECHO} suite | tests/tests)
 
 .include <bsd.port.mk>