diff --git a/src/tencent_cos.cpp b/src/tencent_cos.cpp
index ef6a9bf..26aeb63 100644
--- a/src/tencent_cos.cpp
+++ b/src/tencent_cos.cpp
@@ -125,7 +125,6 @@ std::string module::tencent_cos::updata(const std::string& appid,const std::stri
     cos_list_init(&buffer);
     content = cos_buf_pack(options->pool, data.data(), data.size());
     cos_list_add_tail(&content->node, &buffer);
-
     s = cos_put_object_from_buffer(options, &bucket, &object,
                                    &buffer, headers, &resp_headers);