diff --git a/Setup/Environment variables.md b/Setup/Environment variables.md
index 8a5f434..8cfdd7d 100644
--- a/Setup/Environment variables.md	
+++ b/Setup/Environment variables.md	
@@ -51,7 +51,7 @@ The common Wireguard variables are described below.
 | `CITY` | | Comma separated list of [cities](Mullvad-Servers) | VPN server city |
 | `SERVER_HOSTNAME` | | Comma separated list of [server hostnames](Mullvad-Servers) | Server hostname(s) |
 | `ISP` | | Comma separated list of [ISPs](Mullvad-Servers) | VPN server ISP |
-| `PORT` | | `80`, `443` or `1401` for TCP; `53`, `1194`, `1195`, `1196`, `1197`, `1300`, `1301`, `1302`, `1303` or `1400` for UDP. Defaults to TCP `443` and UDP `1194` | Custom VPN port to use |
+| `OPENVPN_PORT` | | `80`, `443` or `1401` for TCP; `53`, `1194`, `1195`, `1196`, `1197`, `1300`, `1301`, `1302`, `1303` or `1400` for UDP. Defaults to TCP `443` and UDP `1194` | Custom VPN port to use |
 | `OWNED` | `no` | `yes` or `no` | If the VPN server is owned by Mullvad. Note that `no` includes all servers |
 | 🏁 `WIREGUARD_PRIVATE_KEY` | | 32 bytes key in base64 format | Wireguard private key, only required if `VPN_TYPE=wireguard`. Note this is usually specific by user and the same for all servers. |
 | 🏁 `WIREGUARD_ADDRESS` | | IP network in the format `xx.xx.xx.xx/xx` | Wireguard interface address, only required if `VPN_TYPE=wireguard`. Note this is usually specific by user and the same for all servers. |
@@ -140,7 +140,7 @@ You need to have your Openvpn private key file accessible to Gluetun, see [Clien
 | `SERVER_HOSTNAME` | | Comma separated list of [server hostnames](Private-Internet-Access-Servers) | Server hostname(s) |
 | `SERVER_NAME` | | Comma separated list of [server names](Private-Internet-Access-Servers) | Server name(s) |
 | `PIA_ENCRYPTION` | `strong` | `normal`, `strong` or `none` | Encryption preset. ⚠️ `none` disables the `cipher` and `auth` openvpn instructions |
-| `PORT` | | An acceptable port for PIA | Custom VPN port to use |
+| `OPENVPN_PORT` | | An acceptable port for PIA | Custom VPN port to use |
 | `PORT_FORWARDING` | `off` | `on`, `off` | Enable port forwarding on the VPN server |
 | `PORT_FORWARDING_STATUS_FILE` | `/tmp/gluetun/forwarded_port` | Any filepath | Filepath to store the forwarded port number |
 
@@ -165,7 +165,7 @@ You need to have your Openvpn private key file accessible to Gluetun, see [Clien
 | `CITY` | | | Comma separated list of [cities](Protonvpn-Servers) to choose the VPN server |
 | `SERVER_NAME` | | | Comma separated list of [server names](Protonvpn-Servers) to choose the VPN server |
 | `SERVER_HOSTNAME` | | | Comma separated list of [hostnames](Protonvpn-Servers) to choose the VPN server |
-| `PORT` | `1194` for UDP and `443` for TCP | For TCP: `443`, `5995` or `8443`; for UDP: `80`, `443`, `1194`, `4569`, `5060` | Custom VPN port to use |
+| `OPENVPN_PORT` | `1194` for UDP and `443` for TCP | For TCP: `443`, `5995` or `8443`; for UDP: `80`, `443`, `1194`, `4569`, `5060` | Custom VPN port to use |
 | `FREE_ONLY` | `off` | `on` or `off` | Only use free tier servers |
 
 ### PureVPN
@@ -247,7 +247,7 @@ You need to have your Openvpn private key file accessible to Gluetun, see [Clien
 | `REGION` | | | Comma separated list of [regions](Windscribe-Servers) to choose the VPN server |
 | `CITY` | | | Comma separated list of [cities](Windscribe-Servers) to choose the VPN server |
 | `SERVER_HOSTNAME` | | | Comma separated list of [hostnames](Windscribe-Servers) to choose the VPN server |
-| `PORT` | | One from the [this list of ports](https://windscribe.com/getconfig/openvpn) | Custom VPN port to use |
+| `OPENVPN_PORT` | | One from the [this list of ports](https://windscribe.com/getconfig/openvpn) | Custom VPN port to use |
 | 🏁 `WIREGUARD_PRIVATE_KEY` | | 32 bytes key in base64 format | Wireguard private key, only required if `VPN_TYPE=wireguard`. Note this is usually specific by user and the same for all servers. |
 | 🏁 `WIREGUARD_ADDRESS` | | IP network in the format `xx.xx.xx.xx/xx` | Wireguard interface address, only required if `VPN_TYPE=wireguard`. Note this is usually specific by user and the same for all servers. |
 | `WIREGUARD_ENDPOINT_PORT` | | `53`, `80`, `123`, `443`, `1194`, `65142` | Wireguard server endpoint port to use |
diff --git a/Setup/Openvpn file.md b/Setup/Openvpn file.md
index 145c143..b2bc6d5 100644
--- a/Setup/Openvpn file.md	
+++ b/Setup/Openvpn file.md	
@@ -74,7 +74,7 @@ pull-filter ignore "auth-token"
   - `data-ciphers` and `data-ciphers-fallback` for OpenVPN 2.5
 - `OPENVPN_AUTH`, if set, adds or overrides `auth`.
 - `OPENVPN_MSSFIX`, if set, adds or overrides `mssfix`.
-- `PORT`, if set, overrides the port of the remote connection found in the file.
+- `OPENVPN_PORT`, if set, overrides the port of the remote connection found in the file.
 
 #### Ignored variables