diff --git a/graphics/dust3d/Makefile b/graphics/dust3d/Makefile
index 33544500a1bb..16f117615b79 100644
--- a/graphics/dust3d/Makefile
+++ b/graphics/dust3d/Makefile
@@ -1,47 +1,53 @@
 # Created by: Alexey Dokuchaev <danfe@FreeBSD.org>
 
 PORTNAME=	dust3d
 DISTVERSION=	1.0.0-rc.6
 CATEGORIES=	graphics
 
 PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${PORTNAME}/commit/
 PATCHFILES=	f8339d25ddb79f893413.diff:-p1 821285de824baf01ae99.diff:-p1
 
 MAINTAINER=	danfe@FreeBSD.org
 COMMENT=	Open-source 3D modeling software
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	${LOCALBASE}/include/boost/config.hpp:devel/boost-libs \
 		${LOCALBASE}/include/CGAL/Polygon_mesh_processing/corefinement.h:math/cgal \
 		cmake:devel/cmake
 LIB_DEPENDS=	libgmp.so:math/gmp libmpfr.so:math/mpfr
 
 USES=		compiler:c++14-lang gmake qt:5
 USE_GITHUB=	yes
 GH_ACCOUNT=	huxingyi
 USE_QT=		buildtools_build linguisttools_build qmake_build \
 		core gui network opengl widgets
 ALL_TARGET=	all
 
 DESKTOP_ENTRIES="Dust3D" "${COMMENT}" "${PORTNAME}" "${PORTNAME}" \
 		"Application;" false
 
 PLIST_FILES=	bin/${PORTNAME}
 
+.include <bsd.port.options.mk>
+
+.if ${ARCH} == powerpc || ${ARCH} == riscv64
+EXTRA_PATCHES=	${FILESDIR}/extra-patch-thirdparty_instant-meshes_instant-meshes-dust3d_ext_tbb_src_tbb_tools__api_ittnotify__config.h
+.endif
+
 post-patch:
 	@${REINPLACE_CMD} -e '/PLATFORM =/s,Linux,${OPSYS},' \
 		${WRKSRC}/${PORTNAME}.pro
 do-configure:
 	cd ${CONFIGURE_WRKSRC} && ${QMAKE_ENV} ${QMAKE} ${QMAKE_ARGS}
 
 pre-build:
 	cd ${BUILD_WRKSRC}/thirdparty/instant-meshes && cmake -B build
 	${MAKE_CMD} -C ${BUILD_WRKSRC}/thirdparty/instant-meshes/build
 
 do-install:
 	${INSTALL_PROGRAM} ${INSTALL_WRKSRC}/${PORTNAME} \
 		${STAGEDIR}${PREFIX}/bin
 
 .include <bsd.port.mk>
diff --git a/graphics/dust3d/files/extra-patch-thirdparty_instant-meshes_instant-meshes-dust3d_ext_tbb_src_tbb_tools__api_ittnotify__config.h b/graphics/dust3d/files/extra-patch-thirdparty_instant-meshes_instant-meshes-dust3d_ext_tbb_src_tbb_tools__api_ittnotify__config.h
new file mode 100644
index 000000000000..cb95787669b4
--- /dev/null
+++ b/graphics/dust3d/files/extra-patch-thirdparty_instant-meshes_instant-meshes-dust3d_ext_tbb_src_tbb_tools__api_ittnotify__config.h
@@ -0,0 +1,11 @@
+--- thirdparty/instant-meshes/instant-meshes-dust3d/ext/tbb/src/tbb/tools_api/ittnotify_config.h.orig	2021-06-30 18:42:09 UTC
++++ thirdparty/instant-meshes/instant-meshes-dust3d/ext/tbb/src/tbb/tools_api/ittnotify_config.h
+@@ -335,7 +335,7 @@ ITT_INLINE long
+ __itt_interlocked_increment(volatile long* ptr) ITT_INLINE_ATTRIBUTE;
+ ITT_INLINE long __itt_interlocked_increment(volatile long* ptr)
+ {
+-    return __TBB_machine_fetchadd4(ptr, 1) + 1L;
++    return __atomic_fetch_add(ptr, 1L, __ATOMIC_SEQ_CST) + 1L;
+ }
+ #endif /* ITT_SIMPLE_INIT */
+