diff --git a/src/object_store/src/object/opendal_engine/fs.rs b/src/object_store/src/object/opendal_engine/fs.rs
index c1841363e198f..b0a1f917baa33 100644
--- a/src/object_store/src/object/opendal_engine/fs.rs
+++ b/src/object_store/src/object/opendal_engine/fs.rs
@@ -27,8 +27,7 @@ impl OpendalObjectStore {
         let mut builder = Fs::default();
 
         builder.root(&root);
-        let atomic_write_dir = format!("{}{}", root, ATOMIC_WRITE_DIR);
-        builder.atomic_write_dir(&atomic_write_dir);
+        builder.atomic_write_dir(ATOMIC_WRITE_DIR);
 
         let op: Operator = Operator::new(builder)?
             .layer(RetryLayer::default())
diff --git a/src/object_store/src/object/opendal_engine/webhdfs.rs b/src/object_store/src/object/opendal_engine/webhdfs.rs
index f591a91f8f16a..7116eac18582f 100644
--- a/src/object_store/src/object/opendal_engine/webhdfs.rs
+++ b/src/object_store/src/object/opendal_engine/webhdfs.rs
@@ -31,8 +31,7 @@ impl OpendalObjectStore {
         // NOTE: the root must be absolute path.
         builder.root(&root);
 
-        let atomic_write_dir = format!("{}{}", root, ATOMIC_WRITE_DIR);
-        builder.atomic_write_dir(&atomic_write_dir);
+        builder.atomic_write_dir(ATOMIC_WRITE_DIR);
         let op: Operator = Operator::new(builder)?
             .layer(LoggingLayer::default())
             .layer(RetryLayer::default())