--- Makefile.orig	2015-02-08 17:16:31.658530774 +0100
+++ Makefile	2015-02-08 17:23:53.973500561 +0100
@@ -43,9 +43,10 @@
 GEN_RUN_DEPENDS=${LOCALBASE}/share/transmission/web/index.html:${PORTSDIR}/www/transmission-web
 
 # This is master port of transmission-*, so don't override USES definition 
-USES+=		gmake iconv libtool pkgconfig
+USES+=		cpe gmake iconv libtool pkgconfig
 USE_OPENSSL=	yes
 GNU_CONFIGURE=	yes
+CPE_VENDOR=	transmissionbt
 CPPFLAGS+=	-I${LOCALBASE}/include -DWITH_UTP=1
 LDFLAGS+=	-L${LOCALBASE}/lib
 LIBS+=		${ICONV_LIB}