diff --git a/Setup-Reverse-Proxy.md b/Setup-Reverse-Proxy.md
index 5caa987..5ea5741 100644
--- a/Setup-Reverse-Proxy.md
+++ b/Setup-Reverse-Proxy.md
@@ -66,6 +66,7 @@ If you have an Authentication server like Authelia setup, you can skip authentic
 ```
 location /kobo {
 set $upstream_calibreweb $forward_scheme://$server:$port;
+proxy_set_header X-Forwarded-Host $http_host;
 proxy_pass $upstream_calibreweb;
 proxy_buffer_size 128k;
 proxy_buffers 4 256k;