diff --git a/math/libRmath/Makefile b/math/libRmath/Makefile
index 7bba9ddad580..23cca433215a 100644
--- a/math/libRmath/Makefile
+++ b/math/libRmath/Makefile
@@ -1,48 +1,49 @@
 PORTNAME=	libRmath
 DISTVERSION=	4.4.1
 CATEGORIES=	math lang
 MASTER_SITES=	CRAN/src/base/R-${DISTVERSION:C|\..*||}
 DISTNAME=	R-${DISTVERSIONPREFIX}${DISTVERSION}${DISTVERSIONSUFFIX}
 
 MAINTAINER=	alster@vinterdalen.se
 COMMENT=	Standalone math library from R
 WWW=		https://www.R-project.org/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 ONLY_FOR_ARCHS=	aarch64 amd64 armv6 armv7 i386 powerpc64 powerpc64le
 
 LIB_DEPENDS=	libcurl.so:ftp/curl \
 		libpcre2-8.so:devel/pcre2
 
-USES=		fortran localbase pathfix
+USES=		cpe fortran localbase pathfix
+CPE_VENDOR=	r-project
 USE_LDCONFIG=	yes
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--disable-nls \
 		--with-cairo=no \
 		--with-ICU=no \
 		--with-jpeglib=no \
 		--with-libpng=no \
 		--with-libtiff=no \
 		--with-readline=no \
 		--with-tcltk=no \
 		--with-x=no \
 		--without-libintl-prefix
 CONFIGURE_ENV+=	ac_cv_header_iconv_h=no \
 		FPICFLAGS=-fPIC
 
 BUILD_WRKSRC=	${WRKSRC}/src/nmath/standalone
 
 PLIST_SUB=	RMATH_SOVERSION="${_RMATH_SOVERSION}"
 
 _RMATH_SOVERSION=	${DISTVERSION:R}
 
 do-install:
 	${INSTALL_DATA} ${WRKSRC}/src/include/Rmath.h ${STAGEDIR}${PREFIX}/include
 	${INSTALL_DATA} ${BUILD_WRKSRC}/libRmath.a ${STAGEDIR}${PREFIX}/lib
 	${INSTALL_LIB} ${BUILD_WRKSRC}/libRmath.so ${STAGEDIR}${PREFIX}/lib
 	(cd ${STAGEDIR}${PREFIX}/lib; ${LN} -sf libRmath.so libRmath.so.${_RMATH_SOVERSION})
 
 .include <bsd.port.mk>