diff --git a/README.md b/README.md
index eabde47..cc755c1 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@ This repository contains setup or configuration files for [LibreELEC](https://li
 ### WireGuard VPN setup
 * copy `~/.config/wireguard/wireguard.config.sample` to a new file, and adjust the parameters (see
 https://wiki.libreelec.tv/configuration/wireguard for reference)
+* do NOT set the DNS server in this conf file, but in `variables.conf`
 
 ### Files
 * `variables.conf.template` contains examples variables definitions, and should be copied locally to `variables.conf`