diff --git a/net-p2p/opendchub/Makefile b/net-p2p/opendchub/Makefile
index 7a6b69e944a5..4cf53747c3be 100644
--- a/net-p2p/opendchub/Makefile
+++ b/net-p2p/opendchub/Makefile
@@ -1,31 +1,37 @@
 PORTNAME=	opendchub
 PORTVERSION=	0.8.3
 CATEGORIES=	net-p2p
 MASTER_SITES=	SF/${PORTNAME}/Open%20DC%20Hub/${PORTVERSION}
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Unofficial Unix version of the Direct Connect Hub software
 WWW=		http://opendchub.sourceforge.net/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		perl5 gmake localbase ssl
 GNU_CONFIGURE=	yes
 # Fix build with clang 11
 CFLAGS+=	-fcommon
 
 OPTIONS_DEFINE=	DOCS
 
 PORTDOCS=	README configfiles general scriptdoc
 PLIST_FILES=	bin/${PORTNAME}
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400091 || ( ${OSVERSION} >= 1302507 && ${OSVERSION} < 1400000 ))
+CFLAGS+=	-Wno-error=incompatible-function-pointer-types
+.endif
+
 pre-install:
 	@${CHMOD} a+rx ${WRKSRC}/install-sh
 
 post-install:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${WRKSRC}/README ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${WRKSRC}/Documentation/* ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>