diff --git a/vm/opnsense-vm.sh b/vm/opnsense-vm.sh
index 7b20b159..f17cd0c3 100644
--- a/vm/opnsense-vm.sh
+++ b/vm/opnsense-vm.sh
@@ -359,7 +359,7 @@ function advanced_settings() {
   else
     exit-script
   fi
-  if NETMASK=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a LAN netmmask (/24 for example)" 8 58 $NETMASK --title "LAN NETMASK" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+  if NETMASK=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a LAN netmmask (24 for example)" 8 58 $NETMASK --title "LAN NETMASK" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $NETMASK ]; then
       NETMASK=""
     fi
@@ -394,7 +394,7 @@ function advanced_settings() {
   else
     exit-script
   fi
-  if WAN_NETMASK=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a WAN netmmask (/24 for example)" 8 58 $WAN_NETMASK --title "WAN NETMASK" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
+  if WAN_NETMASK=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a WAN netmmask (24 for example)" 8 58 $WAN_NETMASK --title "WAN NETMASK" --cancel-button Exit-Script 3>&1 1>&2 2>&3); then
     if [ -z $WAN_NETMASK ]; then
       WAN_NETMASK=""
     fi