diff --git a/mail/qmail-rblchk/Makefile b/mail/qmail-rblchk/Makefile
index 3b1d73eec984..185abca4ff09 100644
--- a/mail/qmail-rblchk/Makefile
+++ b/mail/qmail-rblchk/Makefile
@@ -1,48 +1,51 @@
 PORTNAME=	qmail-rblchk
 PORTVERSION=	2.4.1
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	mail
 MASTER_SITES=	http://www.morettoni.net/qmail/ \
 		LOCAL/ehaupt
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Qmail RBL filter
 WWW=		http://www.morettoni.net/qmail-rblchk.en.html
 
+# so says qmail-rblchk.c
+LICENSE=	BSD2CLAUSE
+
 USES=		groff qmail:run
 
 ALL_TARGET=	default
 INSTALL_TARGET=	setup
 
 CFLAGS?=	-O2 -Wimplicit -Wunused -Wcomment -Wchar-subscripts -Wuninitialized \
 		-Wshadow -Wcast-qual -Wcast-align -Wwrite-strings
 LDFLAGS?=	-s
 
 WRKSRC=		${WRKDIR}/${PORTNAME}
 
 OPTIONS_DEFINE=	EXAMPLES
 
 .include <bsd.port.options.mk>
 
 .if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400091 || ( ${OSVERSION} >= 1302507 && ${OSVERSION} < 1400000 ))
 CFLAGS+=	-Wno-error=incompatible-function-pointer-types
 .endif
 
 post-patch:
 	@${REINPLACE_CMD} -e '/"cat/d; s|,02755|,0755|' \
 		-e 's|\"man|\"share/man|g' \
 		${WRKSRC}/hier.c
 
 do-configure:
 	${PRINTF}   "${STAGEDIR}${PREFIX}\n\n.../bin.\n"	> ${WRKSRC}/conf-home
 	${ECHO_CMD} "${CC} ${CFLAGS}"		> ${WRKSRC}/conf-cc
 	${ECHO_CMD} "${CC} ${LDFLAGS}"		> ${WRKSRC}/conf-ld
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/*
 	${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 .for f in rbllist.sh spam-report.sh dot-qmail-storeip
 	${INSTALL_DATA} ${WRKSRC}/contrib/${f} ${STAGEDIR}${EXAMPLESDIR}
 .endfor
 
 .include <bsd.port.mk>
diff --git a/mail/qmail-rblchk/files/patch-error.h b/mail/qmail-rblchk/files/patch-error.h
new file mode 100644
index 000000000000..5dc2cfdcaf6f
--- /dev/null
+++ b/mail/qmail-rblchk/files/patch-error.h
@@ -0,0 +1,11 @@
+--- error.h.orig	2024-09-25 10:49:27 UTC
++++ error.h
+@@ -1,7 +1,7 @@
+ #ifndef ERROR_H
+ #define ERROR_H
+ 
+-extern int errno;
++#include <errno.h>
+ 
+ extern int error_intr;
+ extern int error_nomem;