diff --git a/net/ntpsec/Makefile b/net/ntpsec/Makefile
index 6a9c91c5e07c..6cd7cef1762f 100644
--- a/net/ntpsec/Makefile
+++ b/net/ntpsec/Makefile
@@ -1,38 +1,43 @@
 PORTNAME=	ntpsec
 DISTVERSIONPREFIX=	NTPsec_
 DISTVERSION=	1_2_2a
+PORTREVISION=	1
 CATEGORIES=	net
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Network Time Protocol suite, refactored
 WWW=		https://gitlab.com/NTPsec/ntpsec/
 
 LICENSE=	BSD2CLAUSE
 
 LIB_DEPENDS=	libdns_sd.so:net/mDNSResponder
 
 USES=		cpe bison gettext-runtime pkgconfig python shebangfix ssl waf
 USE_GITHUB=	yes
 USE_LDCONFIG=	${PREFIX}/lib/ntp
 
 SHEBANG_FILES=	${WRKSRC}/ntpclients/ntp*.py
 python_OLD_CMD=	@PYSHEBANG@
 
 CONFLICTS=	ntp ntp-devel openntpd
 
 MAKE_ENV=	NOSYNC=1 # workaround for the console problem: https://gitlab.com/NTPsec/ntpsec/issues/599
 
 TEST_TARGET=	check
 
-OPTIONS_DEFINE=			DOCS
+OPTIONS_DEFINE=			DOCS REFCLOCKS
+OPTIONS_DEFAULT=		REFCLOCKS
 
 DOCS_CONFIGURE_ENABLE=	doc
 DOCS_BUILD_DEPENDS=	asciidoctor:textproc/rubygem-asciidoctor # alternatively ntpsec can use asciidoc:textproc/asciidoc but it prefers asciidoctor
 
+REFCLOCKS_DESC=	Enable all refclocks
+REFCLOCKS_VARS=	CONFIGURE_ARGS+=--refclock=all
+
 PORTSCOUT=	limit:^\d+\. # prevent alpha-numeric strings
 
 post-install: # autoplist: plist varies depending on the python version
 	@cd ${STAGEDIR}${PREFIX} && \
 		${FIND} * -type f -or -type l | ${SED} -e 's|^share/man/.*|&.gz|' >> ${TMPPLIST}
 
 .include <bsd.port.mk>