diff --git a/wireguard/DOCS.md b/wireguard/DOCS.md
index 30dcf0c..5c41a92 100644
--- a/wireguard/DOCS.md
+++ b/wireguard/DOCS.md
@@ -113,10 +113,14 @@ A list of DNS servers used by the add-on and the configuration generated for
 the clients. This configuration option is optional, and if no DNS servers are
 set, it will use the built-in DNS server from Hass.io.
 
-**If you are running the [AdGuard][adguard] add-on,
-you can add `172.30.32.1` as a DNS IP address in the list.** This will cause your
-clients to use those. What this does, it effectively making your clients
-to have ad-filtering (e.g., your mobile phone), while not at home.
+**If you are running the [AdGuard][adguard] add-on, you can add the LAN address 
+of HomeAssistant as a DNS IP address in the list.** This will cause your clients 
+to use those. What this does, it effectively making your clients to have 
+ad-filtering (e.g., your mobile phone), while not at home.
+
+*Note: This used to recommend adding `172.30.32.1` as the IP address for Adguard.
+Starting in v4.0.0 of that add-on that won't work anymore, you'll need to use
+the LAN address. You will also need to update any previously configured clients.
 
 ### Option: `server.private_key` _(optional)_