diff --git a/doc/crawler.md b/doc/crawler.md
index e637c261..d03cf8d7 100644
--- a/doc/crawler.md
+++ b/doc/crawler.md
@@ -24,6 +24,8 @@ The ultrapeer responds with the following message, also in a signed datagram.  I
     version: 1,
     uuid: "asdf-1234-...",
     clientVersion: "MuWire 1.2.3",
+	leafSlots: true,
+	peerSlots: true,
     peers: [ b64.1, b64.2...]
 }
 ```