diff --git a/net/rubygem-grpc/Makefile b/net/rubygem-grpc/Makefile
index 5a1010a2db32..f1f814774378 100644
--- a/net/rubygem-grpc/Makefile
+++ b/net/rubygem-grpc/Makefile
@@ -1,29 +1,29 @@
 PORTNAME=	grpc
 PORTVERSION=	1.40.0
 CATEGORIES=	net rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Ruby implementation of gRPC
 
 LICENSE=	BSD3CLAUSE
 
 LIB_DEPENDS=	libcares.so:dns/c-ares \
 		libgrpc.so:devel/grpc
 RUN_DEPENDS=	ca_root_nss>=0:security/ca_root_nss \
 		rubygem-google-protobuf>=3.15<4:devel/rubygem-google-protobuf \
 		rubygem-googleapis-common-protos-types>=1.0<2:devel/rubygem-googleapis-common-protos-types
 
-USES=		gem gmake pkgconfig
+USES=		cpe gem gmake pkgconfig
 USE_RUBY=	yes
 
 MAKE_JOBS_UNSAFE=	yes
 
 post-patch:
 	@${RM} ${WRKSRC}/Makefile ${WRKSRC}/.yardopts
 	@${RM} -r ${WRKSRC}/etc ${WRKSRC}/include ${WRKSRC}/third_party ${WRKSRC}/src/boringssl ${WRKSRC}/src/core
 	@${REINPLACE_CMD} -e 's|%%LOCALBASE%%|${LOCALBASE}|' ${WRKSRC}/src/ruby/lib/grpc.rb
 	@${REINPLACE_CMD} -Ee '/s\.files = /s;, "(Makefile|etc|include|third_party|src/boringssl|src/core)[^"]*"\.freeze;;g' ${WRKSRC}/${GEMSPEC}
 	@${REINPLACE_CMD} -e '/s\.files = /s|"\.yardopts"\.freeze, ||' ${WRKSRC}/${GEMSPEC}
 
 .include <bsd.port.mk>