diff --git a/docs/SETTINGS.md b/docs/SETTINGS.md
index 1c52afa..689b4c1 100644
--- a/docs/SETTINGS.md
+++ b/docs/SETTINGS.md
@@ -11,6 +11,7 @@ Here are the descriptions of values available to use in the `settings` table:
 | | PRODUCTION | system logs are minimal |
 | AES_DECRYPT_KEY | | hex encoded 128 bit AES key - see [FAQ](FAQ.md#how-do-i-generate-a-random-key-value-)|
 | HOST_DOMAIN | yourdomain.com | the domain for hosting lnurlw & lnurlp services |
+| HOST_DOMAIN_PORT | 1234 | FORK: the port attached to the host domain |
 | MIN_WITHDRAW_SATS | 1 | minimum satoshis for lnurlw response |
 | MAX_WITHDRAW_SATS | 1000000 | maximum satoshis for lnurlw response |
 | LN_HOST | your_lnd_node.io | LND node gRPC domain |