diff --git a/docs/sandboxes/manage-gateways.mdx b/docs/sandboxes/manage-gateways.mdx
index f12f6951c..08236f5b8 100644
--- a/docs/sandboxes/manage-gateways.mdx
+++ b/docs/sandboxes/manage-gateways.mdx
@@ -121,6 +121,9 @@ The most commonly changed values are:
 | `server.sshGatewayHost` / `server.sshGatewayPort` | Public host and port returned to CLI clients for SSH proxy connections. |
 | `server.disableTls` | Run the gateway over plaintext HTTP. Use only behind a trusted transport. |
 | `server.tls.*` | Secret names for server and client mTLS materials. |
+| `supervisor.image.repository` | Repository for the supervisor init container image. Defaults to `ghcr.io/nvidia/openshell/supervisor`. |
+| `supervisor.image.tag` | Tag for the supervisor image. Defaults to the chart's `appVersion` so the supervisor and gateway stay in sync. |
+| `supervisor.image.pullPolicy` | Pull policy for the supervisor image. Defaults to the Kubernetes cluster default when unset. |
 
 Use a values file for repeatable deployments: