diff --git a/net-mgmt/ipv6calc/Makefile b/net-mgmt/ipv6calc/Makefile
index 1385e49ec53e..7b9df003f3dc 100644
--- a/net-mgmt/ipv6calc/Makefile
+++ b/net-mgmt/ipv6calc/Makefile
@@ -1,26 +1,27 @@
 PORTNAME=	ipv6calc
 PORTVERSION=	4.1.0
 CATEGORIES=	net-mgmt
 MASTER_SITES=	https://www.bieringer.de/ftp/pub/linux/IPv6/ipv6calc/ \
 		https://www.deepspace6.net/ftp/pub/ds6/sources/ipv6calc/
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Convert, change, and calculate with IPv6 addresses
 WWW=		https://www.deepspace6.net/projects/ipv6calc.html \
 		https://github.com/pbiering/ipv6calc
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	bash:shells/bash
 
 USES=		gmake perl5 shebangfix ssl
 
 GNU_CONFIGURE=	yes
+GNU_CONFIGURE_MANPREFIX=${PREFIX}/share
 
 SHEBANG_FILES=	tools/*
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/*
 
 .include <bsd.port.mk>
diff --git a/net-mgmt/ipv6calc/files/patch-man__Makefile.in b/net-mgmt/ipv6calc/files/patch-man__Makefile.in
deleted file mode 100644
index b7f96963aee0..000000000000
--- a/net-mgmt/ipv6calc/files/patch-man__Makefile.in
+++ /dev/null
@@ -1,12 +0,0 @@
---- man/Makefile.in.orig	2016-12-29 08:56:34 UTC
-+++ man/Makefile.in
-@@ -25,7 +25,7 @@ clean:
- test:		
- 
- install:
--		mkdir -p $(DESTDIR)$(mandir)/man8
-+		mkdir -p $(DESTDIR)${PREFIX}/man/man8
- 		for f in *.8; do \
--			install -m 644 $$f $(DESTDIR)$(mandir)/man8; \
-+			install -m 644 $$f $(DESTDIR)${PREFIX}/man/man8; \
- 		done
diff --git a/net-mgmt/ipv6calc/pkg-plist b/net-mgmt/ipv6calc/pkg-plist
index 44e2c3b4a0f2..589616ba92ec 100644
--- a/net-mgmt/ipv6calc/pkg-plist
+++ b/net-mgmt/ipv6calc/pkg-plist
@@ -1,17 +1,17 @@
 bin/ipv6calc
 bin/ipv6loganon
 bin/ipv6logconv
 bin/ipv6logstats
-man/man8/ipv6calc.8.gz
-man/man8/ipv6loganon.8.gz
-man/man8/ipv6logconv.8.gz
-man/man8/ipv6logstats.8.gz
 %%DATADIR%%/tools/DBIP-update.sh
 %%DATADIR%%/tools/GeoIP-update.sh
 %%DATADIR%%/tools/IP2Location-update.sh
 %%DATADIR%%/tools/ipv6calc-create-registry-list-ipv4.pl
 %%DATADIR%%/tools/ipv6calc-create-registry-list-ipv6.pl
 %%DATADIR%%/tools/ipv6calc-create-update-ipset.sh
 %%DATADIR%%/tools/ipv6calc-db-update.sh
 %%DATADIR%%/tools/ipv6calc-registries-check-run-create.sh
 %%DATADIR%%/tools/ipv6calc-update-registries.sh
+share/man/man8/ipv6calc.8.gz
+share/man/man8/ipv6loganon.8.gz
+share/man/man8/ipv6logconv.8.gz
+share/man/man8/ipv6logstats.8.gz