diff --git a/go/seatdef/seatdef.go b/go/seatdef/seatdef.go
index da9a86df..1a104c9f 100644
--- a/go/seatdef/seatdef.go
+++ b/go/seatdef/seatdef.go
@@ -256,8 +256,9 @@ type Message struct {
 	Keep *Keep `json:"keep,omitempty"`
 	// Callers says who may send an accepted kind, as a verb's (design 47 G §338).
 	Callers *Callers `json:"callers,omitempty"`
-	// Stream is the stream an accepted kind rides, StreamCheck or StreamDelivery; its subject is `<stream>.<kind>`, and
-	// the same kind name may ride more than one stream (design 47 G §415).
+	// Stream is the stream an accepted kind rides, StreamCheck or StreamDelivery: its queue, and its subject is the queue's,
+	// `accept.<stream>`, the kind in the body alone (design 47 G §600, A-170). Its generated names and an invoke name it
+	// `<stream>.<kind>`, so the same kind name may ride more than one stream (design 47 G §415).
 	Stream string `json:"stream,omitempty"`
 }