diff --git a/src/tencent_cos.cpp b/src/tencent_cos.cpp
index 26aeb63..f17b7ff 100644
--- a/src/tencent_cos.cpp
+++ b/src/tencent_cos.cpp
@@ -198,6 +198,7 @@ void module::tencent_cos::regist(sol::state* lua)
     lua->new_usertype<module::tencent_cos>("fw_tencent_cos",
         "new", sol::constructors<module::tencent_cos()>(),
         "upfile", &module::tencent_cos::upfile,
+        "updata", &module::tencent_cos::updata,
         "del", &module::tencent_cos::del
     );
 }