diff --git a/pkg/doorbird/backchannel.go b/pkg/doorbird/backchannel.go
index 82379383d..4d2522283 100644
--- a/pkg/doorbird/backchannel.go
+++ b/pkg/doorbird/backchannel.go
@@ -88,6 +88,8 @@ func (c *Client) AddTrack(media *core.Media, codec *core.Codec, track *core.Rece
 }
 
 func (c *Client) Start() (err error) {
-	_, err = c.conn.Read(nil)
+	// just block until c.conn closed
+	b := make([]byte, 1)
+	_, err = c.conn.Read(b)
 	return
 }