diff --git a/bin/benchmark-prepare-software-nat64-jool.sh b/bin/benchmark-prepare-software-nat64-jool.sh
index 40a29ee..cdc3279 100755
--- a/bin/benchmark-prepare-software-nat64-jool.sh
+++ b/bin/benchmark-prepare-software-nat64-jool.sh
@@ -12,9 +12,9 @@ if [ $# -lt 1 ]; then
 fi
 
 sudo /etc/init.d/tayga stop
-modprobe -r jool_siit
-iptables -t mangle -F
-ip6tables -t mangle -F
+sudo modprobe -r jool_siit
+sudo iptables -t mangle -F
+sudo ip6tables -t mangle -F
 
 
 sudo sysctl -w net.ipv4.conf.all.forwarding=1