diff --git a/website/source/docs/http/index.html.md b/website/source/docs/http/index.html.md
index 6805c2f9b7..1a4c08557b 100644
--- a/website/source/docs/http/index.html.md
+++ b/website/source/docs/http/index.html.md
@@ -161,6 +161,8 @@ The following HTTP status codes are used throughout the API.
 - `404` - Invalid path. This can both mean that the path truly
    doesn't exist or that you don't have permission to view a
    specific path. We use 404 in some cases to avoid state leakage.
+- `429` - Default return code for health status of standby nodes, indicating a
+   warning.
 - `500` - Internal server error. An internal error has occurred,
    try again later. If the error persists, report a bug.
 - `503` - Vault is down for maintenance or is currently sealed.