diff --git a/docs/en/docs/advanced/behind-a-proxy.md b/docs/en/docs/advanced/behind-a-proxy.md
index b5f18e2544..a2252514e3 100644
--- a/docs/en/docs/advanced/behind-a-proxy.md
+++ b/docs/en/docs/advanced/behind-a-proxy.md
@@ -188,7 +188,7 @@ $ fastapi run main.py --forwarded-allow-ips="*"
 ///
 
 Open `http://127.0.0.1:9999/items` in your browser.
-Your request will be redirected by FastAPI to `http://127.0.0.1:9999/items/` and you will see:
+Your request will be redirected by FastAPI to `http://127.0.0.1:8000/items/` and you will see:
 
 ```json
 ["plumbus","portal gun"]