diff --git a/math/sleef/Makefile b/math/sleef/Makefile
index 4b380b603f18..b65c72d541ad 100644
--- a/math/sleef/Makefile
+++ b/math/sleef/Makefile
@@ -1,30 +1,28 @@
 # Created by: Johannes M Dieterich <jmd@FreeBSD.org>
 
 PORTNAME=	sleef
 DISTVERSION=	3.5.0
 PORTREVISION=	3
 CATEGORIES=	math
 
 MAINTAINER=	jmd@FreeBSD.org
 COMMENT=	SIMD Library for Evaluating Elementary Functions, vectorized libm
 
 LICENSE=	BSL
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 USES=		cmake compiler:c11
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	shibatch
 
-CFLAGS_powerpc64=	-mpower8-vector
-
 .include <bsd.port.options.mk>
 
 .if ${ARCH:Mpowerpc64*} || ${ARCH:Marmv?}
 PLIST_SUB+=	GNUABI="@comment "
 .else
 PLIST_SUB+=	GNUABI=""
 .endif
 
 .include <bsd.port.mk>