diff --git a/benchmarks/iozone/Makefile b/benchmarks/iozone/Makefile
index 8e25a3d8de73..9aaecece418c 100644
--- a/benchmarks/iozone/Makefile
+++ b/benchmarks/iozone/Makefile
@@ -2,17 +2,17 @@
 # $FreeBSD$
 
 PORTNAME=	iozone
-PORTVERSION=	3.434
+DISTVERSION=	3_434
 CATEGORIES=	benchmarks
 MASTER_SITES=	http://www.iozone.org/src/current/
-DISTNAME=	${PORTNAME}${PORTVERSION:S/./_/}
-EXTRACT_SUFX=	.tar
+DISTNAME=	${PORTNAME}${DISTVERSION}
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Performance Test of Sequential File I/O
 
 WRKSRC=		${WRKDIR}/${DISTNAME}/src/current
 
+USES=		tar
 MAKEFILE=	makefile
 MAKE_ARGS=	${MAKE_ENV}
 ALL_TARGET=	freebsd