diff --git a/include/re_sipevent.h b/include/re_sipevent.h
index 8f60470..fdd7503 100644
--- a/include/re_sipevent.h
+++ b/include/re_sipevent.h
@@ -77,8 +77,7 @@ struct sipsub;
 
 typedef int  (sipevent_fork_h)(struct sipsub **subp, struct sipsub *osub,
 			       const struct sip_msg *msg, void *arg);
-typedef void (sipevent_notify_h)(struct sip *sip, const struct sip_msg *msg,
-				 void *arg);
+typedef void (sipevent_notify_h)(const struct sip_msg *msg, void *arg);
 
 int sipevent_subscribe(struct sipsub **subp, struct sipevent_sock *sock,
 		       const char *uri, const char *from_name,
diff --git a/src/sipevent/listen.c b/src/sipevent/listen.c
index 2224728..c18a835 100644
--- a/src/sipevent/listen.c
+++ b/src/sipevent/listen.c
@@ -192,13 +192,11 @@ static void notify_handler(struct sipevent_sock *sock,
 		(void)sip_dialog_update(sub->dlg, msg);
 	}
 
+	(void)sip_treply(NULL, sip, msg, 200, "OK");
+
 	if (sub->refer_cseq >= 0 && !sub->id && pl_isset(&event.id)) {
 
-		err = pl_strdup(&sub->id, &event.id);
-		if (err) {
-			(void)sip_treply(NULL, sip, msg, 500, strerror(err));
-			return;
-		}
+		(void)pl_strdup(&sub->id, &event.id);
 	}
 
 	re_printf("notify: %s (%r)\n", sipevent_substate_name(state.state),
@@ -220,7 +218,7 @@ static void notify_handler(struct sipevent_sock *sock,
 	}
 
 	mem_ref(sub);
-	sub->notifyh(sip, msg, sub->arg);
+	sub->notifyh(msg, sub->arg);
 	nrefs = mem_nrefs(sub);
 	mem_deref(sub);
 
diff --git a/src/sipevent/subscribe.c b/src/sipevent/subscribe.c
index a871739..e650da9 100644
--- a/src/sipevent/subscribe.c
+++ b/src/sipevent/subscribe.c
@@ -29,12 +29,10 @@ enum {
 static int request(struct sipsub *sub, bool reset_ls);
 
 
-static void internal_notify_handler(struct sip *sip, const struct sip_msg *msg,
-				    void *arg)
+static void internal_notify_handler(const struct sip_msg *msg, void *arg)
 {
+	(void)msg;
 	(void)arg;
-
-	(void)sip_treply(NULL, sip, msg, 200, "OK");
 }