diff --git a/README.md b/README.md
index 8678617..428b95b 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,7 @@ There are other environment variables if you want to customize various things in
 | `-e IPv6=<True\|False>`<br/> *Optional* *Default: True* | For unraid compatibility, strips out all the IPv6 configuration from DNS/Web services when false.
 | `-e INTERFACE=<NIC>`<br/> *Advanced/Optional* | The default works fine with our basic example docker run commands.  If you're trying to use DHCP with `--net host` mode then you may have to customize this or DNSMASQ_LISTENING.
 | `-e DNSMASQ_LISTENING=<local\|all\|NIC>`<br/> *Advanced/Optional* | `local` listens on all local subnets, `all` permits listening on internet origin subnets in addition to local.
+| `-e WEB_PORT=<PORT>`<br/> *Advanced/Optional* | **This will break the webpage blocked functionality of pi-hole** however it may help advanced setups like those running synology or `--net=host` docker argument.  This guide explains how to restore webpage blocked functionality using a linux router DNAT rule: [Alternagtive Synology installation method](https://discourse.pi-hole.net/t/alternative-synology-installation-method/5454?u=diginc)
 
 Here is a rundown of the other arguments passed into the example `docker run`
 
diff --git a/bash_functions.sh b/bash_functions.sh
index fb425ce..5479982 100644
--- a/bash_functions.sh
+++ b/bash_functions.sh
@@ -193,10 +193,10 @@ setup_web_port() {
     echo "INFO: Without proper router DNAT forwarding to $ServerIP:$web_port, you may not get any blocked websites on ads"
     case $TAG in
         "debian") 
-            sed -i '/server.port\s*=\s*80\s*$/ s/80/'$WEB_PORT'/g' /etc/lighttpd/lighttpd.conf ;;
+            sed -i '/server.port\s*=\s*80\s*$/ s/80/'$web_port'/g' /etc/lighttpd/lighttpd.conf ;;
         "alpine") 
-            sed -i '/^\s*listen \[::\]:80 default_server/ s/80/'$WEB_PORT'/g' /etc/nginx/nginx.conf
-            sed -i '/^\s*listen 80 default_server/ s/80/'$WEB_PORT'/g' /etc/nginx/nginx.conf ;;
+            sed -i '/^\s*listen \[::\]:80 default_server/ s/80/'$web_port'/g' /etc/nginx/nginx.conf
+            sed -i '/^\s*listen 80 default_server/ s/80/'$web_port'/g' /etc/nginx/nginx.conf ;;
     esac
 
 }