diff --git a/lib/talk/startChart/command/message_command.dart b/lib/talk/startChart/command/message_command.dart
index aef5cb83..0ea3f79c 100644
--- a/lib/talk/startChart/command/message_command.dart
+++ b/lib/talk/startChart/command/message_command.dart
@@ -194,7 +194,7 @@ class MessageCommand {
     final payload = talkPing.writeToBuffer();
     ScpMessage message = ScpMessage(
       ProtocolFlag: ProtocolFlagConstant.scp01,
-      MessageType: MessageTypeConstant.RealTimeData,
+      MessageType: MessageTypeConstant.Req,
       MessageId: 1,
       SpTotal: 0,
       SpIndex: 0,