diff --git a/pkg/proto/sdk_ws/ws.proto b/pkg/proto/sdk_ws/ws.proto
index 710eb5046..380287d12 100644
--- a/pkg/proto/sdk_ws/ws.proto
+++ b/pkg/proto/sdk_ws/ws.proto
@@ -383,6 +383,8 @@ message InvitationInfo  {
     string roomID = 5;
     int32 timeout = 6;
     string mediaType = 7;
+     int32 PlatformID = 8;
+
 }