diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index 9a20481f21..2a555bbc4d 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -1428,7 +1428,7 @@ retry:
     cur_auth_type = rt->auth_state.auth_type;
     if ((ret = rtsp_send_cmd_with_content_async(s, method, url, header,
                                                 send_content,
-                                                send_content_length)))
+                                                send_content_length)) < 0)
         return ret;
 
     if ((ret = ff_rtsp_read_reply(s, reply, content_ptr, 0, method) ) < 0)