diff --git a/net/rtpproxy/Makefile b/net/rtpproxy/Makefile
index c0fe7d35ea53..3e0e0e9e5eef 100644
--- a/net/rtpproxy/Makefile
+++ b/net/rtpproxy/Makefile
@@ -1,33 +1,33 @@
 # Created by: sobomax
 
 PORTNAME=	rtpproxy
 PORTVERSION=	2.1.1
 DISTVERSIONPREFIX=	v
 CATEGORIES=	net
 
 MAINTAINER=	farrokhi@FreeBSD.org
 COMMENT=	High-performance RTP proxy server for the SIP Express Router (SER)
 
 LICENSE=	BSD2CLAUSE
 
 LIB_DEPENDS=	libgsm.so:audio/gsm
 
-USES+=		libtool
+USES+=		cpe libtool
 USE_GITHUB=	yes
 GH_ACCOUNT=	sippy
 
 GNU_CONFIGURE=	yes
 CPPFLAGS+=	-I${LOCALBASE}/include
 LIBS+=		-L${LOCALBASE}/lib
 
 USERS=		${PORTNAME}
 GROUPS=		${PORTNAME}
 
 post-build:
 	${SED} 's|%%PREFIX%%|${PREFIX}|g ; s|%%RC_SUBR%%|/etc/rc.subr|g' \
 	    ${WRKSRC}/scripts/rtpproxy.in.freebsd > ${WRKDIR}/rtpproxy
 
 post-install:
 	${INSTALL_SCRIPT} ${WRKDIR}/rtpproxy ${STAGEDIR}${PREFIX}/etc/rc.d/rtpproxy
 
 .include <bsd.port.mk>