diff --git a/shell/gen_protobuf.py b/shell/gen_protobuf.py
index 2cce0e1..5eccf93 100644
--- a/shell/gen_protobuf.py
+++ b/shell/gen_protobuf.py
@@ -40,6 +40,7 @@ def mk_structure(cfg_camel):
             file.write('syntax = "proto3";\nimport "base.proto";\noption go_package = "pkg/proto";\n')
             for v in value:
                 file.write('\nmessage ' + v + 'Request ' + '{\n  BaseKey key = 1;\n}\n')
+                file.write('\nmessage ' + v + 'Response ' + '{\n  int64 update_size = 1;\n}\n')
             file.close()
 
         else:  # 如果这个文件存在