Index: benchmarks/sipp/Makefile
===================================================================
--- benchmarks/sipp/Makefile
+++ benchmarks/sipp/Makefile
@@ -3,6 +3,7 @@
 
 PORTNAME=	sipp
 PORTVERSION=	3.5.1
+PORTREVISION=	1
 CATEGORIES=	benchmarks net
 MASTER_SITES=	https://github.com/${PORTNAME}/${PORTNAME}/releases/download/v${PORTVERSION}/
 
@@ -11,6 +12,8 @@
 
 LICENSE=	GPLv2
 
+BUILD_DEPENDS=	help2man:misc/help2man
+
 PLIST_FILES=	bin/sipp man/man1/sipp.1.gz
 
 USES=		autoreconf gmake ncurses