diff --git a/rtsp/rtsp-session.go b/rtsp/rtsp-session.go
index ed9b077c..6225fe38 100644
--- a/rtsp/rtsp-session.go
+++ b/rtsp/rtsp-session.go
@@ -249,11 +249,7 @@ func (session *Session) Start() {
 					Buffer: rtpBuf,
 				}
 			default:
-				logger.Printf("unknow rtp pack type, %v", pack.Type)
-				continue
-			}
-			if pack == nil {
-				logger.Printf("session tcp got nil rtp pack")
+				logger.Printf("unknow rtp pack type, %v", channel)
 				continue
 			}
 			session.InBytes += rtpLen + 4