diff --git a/README.md b/README.md
index 2172384..35f51be 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@ You can also install BTCPayServer on your own machine or VPS instance.
 
 The officially supported setup is driven by Docker (and Docker-Compose).
 
-First, make sure you have a domain name pointing to your host, with ports `443` and `80` externally accessible (and perhaps additional ports like `9735` and `9736` for Bitcoin and Litecoin lightning).
+First, make sure you have a domain name pointing to your host (CNAME), with ports `443` and `80` externally accessible (and perhaps additional ports like `9735` and `9736` for Bitcoin and Litecoin lightning). Otherwise, you will have to set it manually by running `changedomain.sh`.
 
 Let's assume it is `btcpay.EXAMPLE.com`.