diff --git a/devel/bullet/Makefile b/devel/bullet/Makefile
index 55341678d677..a9337e071dd8 100644
--- a/devel/bullet/Makefile
+++ b/devel/bullet/Makefile
@@ -1,61 +1,69 @@
 # Created by: Jose Alonso Cardenas Marquez <acm@FreeBSD.org>
 
 PORTNAME=	bullet
 PORTVERSION=	3.21
 PORTREVISION=	1
 CATEGORIES=	devel
 
 MAINTAINER=	fluffy@FreeBSD.org
 COMMENT=	3D collision detection and rigid body dynamics library
 
 LICENSE=	ZLIB
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 FLAVORS=	single double
 FLAVOR?=	${FLAVORS:[1]}
 
 double_PKGNAMESUFFIX=	-double
 
 single_CONFLICTS_INSTALL=${PORTNAME}-double
 double_CONFLICTS_INSTALL=${PORTNAME}
 
 USES=		cmake compiler:c++11-lang gl xorg
 USE_GL=		gl glu glut
 USE_LDCONFIG=	yes
 USE_XORG=	x11
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	bulletphysics
 GH_PROJECT=	bullet3
 
 CMAKE_ON=	BUILD_BULLET3 BUILD_SHARED_LIBS INSTALL_LIBS \
 		BUILD_EXTRAS INSTALL_EXTRA_LIBS \
-		BULLET2_MULTITHREADING BULLET2_USE_OPEN_MP_MULTITHREADING
+		BULLET2_MULTITHREADING
 CMAKE_OFF=	BUILD_CPU_DEMOS BUILD_BULLET2_DEMOS BUILD_BULLET3_DEMOS \
 		BUILD_OPENGL3_DEMOS BUILD_PYBULLET BUILD_UNIT_TESTS \
 		BULLET2_USE_TBB_MULTITHREADING ENABLE_VHACD \
 		BUILD_BULLET_ROBOTICS_EXTRA BUILD_BULLET_ROBOTICS_GUI_EXTRA \
 		USE_GRAPHICAL_BENCHMARK
 # List available knobs for Extras
 #		BUILD_HACD_EXTRA BUILD_OBJ2SDF_EXTRA BUILD_BULLET_ROBOTICS_EXTRA \
 #		BUILD_SERIALIZE_EXTRA BUILD_INVERSE_DYNAMIC_EXTRA \
 #		BUILD_CONVEX_DECOMPOSITION_EXTRA BUILD_GIMPACTUTILS_EXTRA
 
 .if ${FLAVOR} == double
 CMAKE_ON+=	USE_DOUBLE_PRECISION
 .endif
 
 PORTDOCS=	*
 
 OPTIONS_DEFINE=	DOCS
 
 PLIST_SUB=	LIB_VERSION=3.20
 
+.include <bsd.port.options.mk>
+
+.if ${ARCH} == powerpc
+CMAKE_OFF+=	BULLET2_USE_OPEN_MP_MULTITHREADING
+.else
+CMAKE_ON+=	BULLET2_USE_OPEN_MP_MULTITHREADING
+.endif
+
 post-patch:
 	@${RM} -r ${WRKSRC}/examples/pybullet
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}/${DOCSDIR}
 	${INSTALL_DATA} ${WRKSRC}/docs/*.pdf ${STAGEDIR}/${DOCSDIR}
 
 .include <bsd.port.mk>