diff --git a/README.md b/README.md
index 96e87d9..7ad421b 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ network blueprint catalog deployed to the production rendezvous.
 | Path | What it is |
 |---|---|
 | `daemon.json` | Reference `pilot-daemon` config — registry, beacon, listen, identity paths. |
-| `gateway.json` | Reference `pilot-gateway` config — alias mappings, port allocations. |
+| `gateway.json` | Reference `pilot-gateway` config — alias mappings, port allocations. Optional: the gateway binary no longer ships in release tarballs; build it from [pilot-protocol/gateway](https://github.com/pilot-protocol/gateway). |
 | `rendezvous.json` | Reference `pilot-rendezvous` config — beacon coords, listen, store. |
 | `networks/` | The shipped network policy catalog — one `.json` per blueprint. |
 | `networks/SHIPPED.md` | Index of every blueprint deployed to the production registry. |