diff --git a/usr/local/share/bastille/common.sh b/usr/local/share/bastille/common.sh
index 1295799..a78fd1d 100644
--- a/usr/local/share/bastille/common.sh
+++ b/usr/local/share/bastille/common.sh
@@ -79,7 +79,8 @@ generate_vnet_jail_netblock() {
     ## define uniq_epair
     local jail_list=$(bastille list jails)
     if [ -n "${jail_list}" ]; then
-        local list_jails_num=$(echo "${jail_list}" | wc -l | awk '{print $1}')
+        # local list_jails_num=$(echo "${jail_list}" | wc -l | awk '{print $1}')
+        local list_jails_num=$(grep -e "e[0-9]b_bastille" "${bastille_jailsdir}"/*/jail.conf | grep -Eo '(bastille)([0-9]{1,3});' | grep -Eo '[0-9]{1,2}' | wc -l | awk '{print $1}')
         local num_range=$((list_jails_num + 1))
         for _num in $(seq 0 "${num_range}"); do
             if ! grep -q "e[0-9]b_bastille${_num}" "${bastille_jailsdir}"/*/jail.conf; then
@@ -112,7 +113,7 @@ EOF
   vnet;
   vnet.interface = e0b_${uniq_epair};
   exec.prestart += "jib addm ${uniq_epair} ${external_interface}";
-  exec.prestart += "ifconfig e0a_${uniq_epair} description \"vnet host interface for Bastille jail ${jail_name}\"";
+  exec.prestart += "ifconfig e0a_${uniq_epair} description \'vnet host interface for Bastille jail ${jail_name}\'";
   exec.poststop += "jib destroy ${uniq_epair}";
 EOF
     fi