diff --git a/docs/advanced-config/README.md b/docs/advanced-config/README.md
index a0acdda1..cdd8f98a 100644
--- a/docs/advanced-config/README.md
+++ b/docs/advanced-config/README.md
@@ -174,6 +174,7 @@ You can add your custom configuration snippet files at `/data/nginx/custom` as f
  - `/data/nginx/custom/events.conf`: Included at the end of the events block
  - `/data/nginx/custom/stream.conf`: Included at the end of the main stream block
  - `/data/nginx/custom/server_proxy.conf`: Included at the end of every proxy server block
+ - `/data/nginx/custom/server_proxy_location_ID.conf`: Included at the end of every location "/" of proxy server block by HOST
  - `/data/nginx/custom/server_redirect.conf`: Included at the end of every redirection server block
  - `/data/nginx/custom/server_stream.conf`: Included at the end of every stream server block
  - `/data/nginx/custom/server_stream_tcp.conf`: Included at the end of every TCP stream server block