diff --git a/ngx_rtmp_handler.c b/ngx_rtmp_handler.c
index 500d095..a4a4c57 100644
--- a/ngx_rtmp_handler.c
+++ b/ngx_rtmp_handler.c
@@ -276,7 +276,7 @@ ngx_rtmp_recv(ngx_event_t *rev)
                 s->in_last_ack = s->in_bytes;
 
                 ngx_log_debug1(NGX_LOG_DEBUG_RTMP, c->log, 0,
-                        "sending RTMP ACK(%D)", s->in_bytes);
+                        "sending RTMP ACK(%uD)", s->in_bytes);
 
                 if (ngx_rtmp_send_ack(s, s->in_bytes)) {
                     ngx_rtmp_finalize_session(s);
diff --git a/ngx_rtmp_live_module.c b/ngx_rtmp_live_module.c
index 1b69b82..8258e47 100644
--- a/ngx_rtmp_live_module.c
+++ b/ngx_rtmp_live_module.c
@@ -615,6 +615,11 @@ ngx_rtmp_live_close_stream(ngx_rtmp_session_t *s, ngx_rtmp_close_stream_t *v)
         ngx_rtmp_send_status(s, "NetStream.Play.Stop", "status", "Stop live");
     }
 
+    if (ctx->publishing) {
+        ngx_rtmp_send_status(s, "NetStream.Unpublish.Success",
+                             "status", "Stop publishing");
+    }
+
 next:
     return next_close_stream(s, v);
 }