diff --git a/release/Makefile b/release/Makefile
--- a/release/Makefile
+++ b/release/Makefile
@@ -158,19 +158,18 @@
 src.txz:
 	mkdir -p ${DISTDIR}/usr
 	ln -fs ${WORLDDIR} ${DISTDIR}/usr/src
-	( cd ${DISTDIR} && ${TAR_CMD} cLvf - --exclude .svn --exclude .zfs \
+	( cd ${DISTDIR} && ${TAR_XZ_CMD} -cLvf ${.OBJDIR}/src.txz \
+	    --exclude .svn --exclude .zfs \
 	    --exclude .git --exclude @ --exclude usr/src/release/dist \
-	    --exclude usr/src/release/obj usr/src | \
-	    ${XZ_CMD} > ${.OBJDIR}/src.txz )
+	    --exclude usr/src/release/obj usr/src )
 
 ports.txz:
 	mkdir -p ${DISTDIR}/usr
 	ln -fs ${PORTSDIR} ${DISTDIR}/usr/ports
-	( cd ${DISTDIR} && ${TAR_CMD} cLvf - \
+	( cd ${DISTDIR} && ${TAR_XZ_CMD} -cLvf ${.OBJDIR}/ports.txz \
 	    --exclude .git --exclude .svn \
 	    --exclude usr/ports/distfiles --exclude usr/ports/packages \
-	    --exclude 'usr/ports/INDEX*' --exclude work usr/ports | \
-	    ${XZ_CMD} > ${.OBJDIR}/ports.txz )
+	    --exclude 'usr/ports/INDEX*' --exclude work usr/ports )
 
 .if defined(PKGBASE)
 PKGBASE_REPO=	pkgbase-repo