diff --git a/racketmq/protocol.rkt b/racketmq/protocol.rkt
index 29fa88f..51e1dcd 100644
--- a/racketmq/protocol.rkt
+++ b/racketmq/protocol.rkt
@@ -53,8 +53,8 @@
 ;; (local-topic-demand String)
 (struct local-topic-demand (name) #:prefab) ;; ASSERTION
 
-;; (local-host String)
+;; (local-host String Number)
 (struct local-host (name port) #:prefab) ;; ASSERTION
 
-;; (canonical-local-host String)
+;; (canonical-local-host String Number)
 (struct canonical-local-host (name port) #:prefab) ;; ASSERTION