diff --git a/release/scripts/ports-install.sh b/release/scripts/ports-install.sh
index 81c4023c77ee..0933e7163264 100755
--- a/release/scripts/ports-install.sh
+++ b/release/scripts/ports-install.sh
@@ -8,5 +8,5 @@ if [ "`id -u`" != "0" ]; then
 	exit 1
 fi
 echo "Extracting ports tarball into ${DESTDIR}/usr"
-cat ports.tgz | tar --unlink -xpzf - -C ${DESTDIR}/usr
+tar --unlink -xpzf ports.tgz -C ${DESTDIR}/usr
 exit 0