diff --git a/auto_install/install.sh b/auto_install/install.sh
index 60903a2..afa5f89 100755
--- a/auto_install/install.sh
+++ b/auto_install/install.sh
@@ -480,7 +480,7 @@ install_dependent_packages() {
     declare -a argArray1=("${!1}")
 
     $SUDO update-alternatives --set iptables /usr/sbin/iptables-legacy
-    $SUDO update-alternatives --set iptables /usr/sbin/ip6tables-legacy
+    $SUDO update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
     echo iptables-persistent iptables-persistent/autosave_v4 boolean true | $SUDO debconf-set-selections
     echo iptables-persistent iptables-persistent/autosave_v6 boolean false | $SUDO debconf-set-selections