diff --git a/racket/syndicate/monitor.rkt b/racket/syndicate/monitor.rkt
index bcef376..b72d0db 100644
--- a/racket/syndicate/monitor.rkt
+++ b/racket/syndicate/monitor.rkt
@@ -111,7 +111,6 @@ a complete trace is observed.
                                                    #:combiner (lambda (v1 v2) (trie-success v1)))
              #:attr re #'(re (seq t.re ...)))))
 
-;; Machine Patch (Bool -> ) -> Actor
 (define-syntax (trace-actor stx)
   (syntax-parse stx
     [(_ t:trace f:expr)