diff --git a/ssh-session.rkt b/ssh-session.rkt
index 72e254f..b0cf0f3 100644
--- a/ssh-session.rkt
+++ b/ssh-session.rkt
@@ -723,15 +723,13 @@
 			      conn)
     (channel-roles cname
 		   (lambda (inbound-stream outbound-stream)
-		     (list (send-message
+		     (list (send-feedback
 			    (channel-message outbound-stream
 					     (channel-stream-config maximum-packet-size
-								    extra-request-data))
-			    'subscriber)
-			   (send-message
+								    extra-request-data)))
+			   (send-feedback
 			    (channel-message outbound-stream
-					     (channel-stream-credit initial-window-size))
-			    'subscriber))))))
+					     (channel-stream-credit initial-window-size))))))))
 
 (define (handle-msg-channel-open-confirmation packet message conn)
   (match-define (ssh-msg-channel-open-confirmation local-ref
@@ -749,13 +747,11 @@
 					     [remote-ref remote-ref]
 					     [outbound-packet-size maximum-packet-size]))
 			      conn)
-    (send-message (channel-message outbound-stream
-				   (channel-stream-config maximum-packet-size
-							  extra-request-data))
-		  'subscriber)
-    (send-message (channel-message outbound-stream
-				   (channel-stream-credit initial-window-size))
-		  'subscriber)))
+    (send-feedback (channel-message outbound-stream
+				    (channel-stream-config maximum-packet-size
+							   extra-request-data)))
+    (send-feedback (channel-message outbound-stream
+				    (channel-stream-credit initial-window-size)))))
 
 (define (handle-msg-channel-open-failure packet message conn)
   (match-define (ssh-msg-channel-open-failure local-ref