diff --git a/src/sipevent/listen.c b/src/sipevent/listen.c
index 3203672..b391e41 100644
--- a/src/sipevent/listen.c
+++ b/src/sipevent/listen.c
@@ -100,7 +100,6 @@ static void notify_handler(struct sipevent_sock *sock,
 			return;
 		}
 
-		// todo: check
 		(void)sip_dialog_update(sub->dlg, msg);
 	}
 
@@ -172,7 +171,6 @@ static void subscribe_handler(struct sipevent_sock *sock,
 		return;
 	}
 
-	// todo: check
 	(void)sip_dialog_update(not->dlg, msg);
 
 	// ...
diff --git a/src/sipevent/subscribe.c b/src/sipevent/subscribe.c
index f62acb7..1536997 100644
--- a/src/sipevent/subscribe.c
+++ b/src/sipevent/subscribe.c
@@ -170,7 +170,6 @@ static void response_handler(int err, const struct sip_msg *msg, void *arg)
 			sub->subscribed = true;
 		}
 		else {
-			// todo: check
 			(void)sip_dialog_update(sub->dlg, msg);
 		}