diff --git a/pkg/rtmp/message_packer.go b/pkg/rtmp/message_packer.go
index edcf962..bb95ae2 100644
--- a/pkg/rtmp/message_packer.go
+++ b/pkg/rtmp/message_packer.go
@@ -85,7 +85,7 @@ func (packer *MessagePacker) writeConnect(writer io.Writer, appName, tcURL strin
 
 	var objs []ObjectPair
 	objs = append(objs, ObjectPair{Key: "app", Value: appName})
-	//objs = append(objs, ObjectPair{Key: "type", Value: "nonprivate"})
+	objs = append(objs, ObjectPair{Key: "type", Value: "nonprivate"})
 	var flashVer string
 	if isPush {
 		flashVer = fmt.Sprintf("FMLE/3.0 (compatible; %s)", base.LALRTMPPushSessionConnectVersion)
diff --git a/pkg/rtmp/tag.go b/pkg/rtmp/tag.go
new file mode 100644
index 0000000..0e0b130
--- /dev/null
+++ b/pkg/rtmp/tag.go
@@ -0,0 +1,8 @@
+package rtmp
+
+type TagHeader struct {
+	Type      uint8  // type
+	DataSize  uint32 // body大小，不包含 header 和 prev tag size 字段 3byte
+	Timestamp uint32 // 绝对时间戳，单位毫秒 4byte
+	StreamID  uint32 // always 0 3byte
+}