diff --git a/docs/_old_structure/guides/admin-guide.md b/docs/_old_structure/guides/admin-guide.md
index ed9d2a9d..3aa73225 100644
--- a/docs/_old_structure/guides/admin-guide.md
+++ b/docs/_old_structure/guides/admin-guide.md
@@ -376,9 +376,8 @@ Session cleanup is scoped to one session identifier and only removes that sessio
 
 ### Web App
 
-| Variable                  | Default                  | Description                            |
-| ------------------------- | ------------------------ | -------------------------------------- |
-| `NEXT_PUBLIC_GATEWAY_URL` | `http://localhost:14242` | Gateway URL used by the Next.js client |
+The web app uses origin-relative paths only; it needs no gateway URL variable.
+(`NEXT_PUBLIC_GATEWAY_URL` is obsolete and no longer read by anything.)
 
 ### Coordination