diff --git a/core/src/services/cos/backend.rs b/core/src/services/cos/backend.rs
index 1a3360ac1ffe..0a9eb3f3dd64 100644
--- a/core/src/services/cos/backend.rs
+++ b/core/src/services/cos/backend.rs
@@ -313,11 +313,11 @@ impl Access for CosBackend {
         let status = resp.status();
 
         match status {
-            StatusCode::OK =>{
+            StatusCode::OK => {
                 let headers = resp.headers();
                 let mut meta = self.core.parse_metadata(path, resp.headers())?;
                 Ok(RpStat::new(meta))
-            },
+            }
             _ => Err(parse_error(resp)),
         }
     }