diff --git a/include/transport/protocol.proto b/include/transport/protocol.proto
index 8dddaf7e7a03b8195bbfbd08aa33b030bc17b5f3..929c02b79056edac6765ec74f2d5d78975c4b25a 100644
--- a/include/transport/protocol.proto
+++ b/include/transport/protocol.proto
@@ -158,6 +158,7 @@ message WrapperMessage {
 		TYPE_FT_CONTINUE			= 28;
 		TYPE_EXIT					= 29;
 		TYPE_BACKEND_CONFIG			= 30;
+		TYPE_QUERY					= 31;
 	}
 	required Type type = 1;
 	optional bytes payload = 2;