diff --git a/comms/hylafax-d/Makefile b/comms/hylafax-d/Makefile
index d7c88c2..4106dd8 100644
--- a/comms/hylafax-d/Makefile
+++ b/comms/hylafax-d/Makefile
@@ -33,6 +33,7 @@ CONFIGURE_ARGS=	--with-INSTALL="" \
 		--with-DIR_HTML="${DOCSDIR}" \
 		--with-GETTY=SysV
 CFLAGS+=	-D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED -Wall -L${LOCALBASE}/lib
+CFLAGS+=      -std=c++14
 C++FLAGS+=      -std=c++14
 CONFIGURE_ENV=	ENVOPTS="${CFLAGS}" STRIP=/usr/bin/true
 MAKE_ENV+=	ROOT=${STAGEDIR}