diff --git a/dns/libidn/Makefile b/dns/libidn/Makefile
index abc76dbfc1e22..aa20152c55145 100644
--- a/dns/libidn/Makefile
+++ b/dns/libidn/Makefile
@@ -13,12 +13,14 @@ LICENSE_COMB=	dual
 LICENSE_FILE_GPLv2+ =	${WRKSRC}/COPYINGv2
 LICENSE_FILE_LGPL3+ =	${WRKSRC}/COPYING.LESSERv3
 
-USES=		gmake iconv libtool localbase makeinfo pathfix perl5 pkgconfig
+USES=		cpe gmake iconv libtool localbase makeinfo pathfix perl5 pkgconfig
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 USE_LDCONFIG=	yes
 USE_PERL5=	build
 
+CPE_VENDOR=	gnu
+
 INFO=		libidn
 
 OPTIONS_DEFINE=	DOCS NLS