diff --git a/sysutils/bacula11-libs3/Makefile b/sysutils/bacula11-libs3/Makefile
index 3b0f220a9d64..cc63e90e2762 100644
--- a/sysutils/bacula11-libs3/Makefile
+++ b/sysutils/bacula11-libs3/Makefile
@@ -1,26 +1,33 @@
 PORTNAME=	bacula11-libs3
 PORTVERSION=	20200523
 CATEGORIES=	sysutils
 MASTER_SITES=	https://www.bacula.org/downloads/
 DISTNAME=	libs3-${DISTVERSIONPREFIX}${DISTVERSION}${DISTVERSIONSUFFIX}
 
 MAINTAINER=	ml@netfence.it
 COMMENT=	Bacula libs3
 WWW=		https://www.bacula.org/
 
 LICENSE=	LGPL3
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS+=	libcurl.so:ftp/curl
 
+USES=		compiler:gcc-c++11-lib gmake gnome ssl
+USE_GNOME+=	libxml2
+
 MAKEFILE=	GNUmakefile
 MAKE_ARGS=	MYDESTDIR=${STAGEDIR}/${PREFIX} \
 		MYINSTALL=install
-USES=		compiler:gcc-c++11-lib gmake gnome ssl
-USE_GNOME+=	libxml2
+.include <bsd.port.options.mk>
+
+.if (${OPSYS} == FreeBSD && ${OSVERSION} >= 1400092 && ${SSL_DEFAULT} == base) || \
+	${SSL_DEFAULT:Mopenssl3*}
+CFLAGS+=	-DOPENSSL_API_COMPAT=0x10100000L
+.endif
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}/${PREFIX}/bin/s3
 	${STRIP_CMD} ${STAGEDIR}/${PREFIX}/lib/libs3.so.4.1.bac
 
 .include <bsd.port.mk>