diff --git a/qlib/workflow/expm.py b/qlib/workflow/expm.py
index cb48d156acf..112cb0a0e0d 100644
--- a/qlib/workflow/expm.py
+++ b/qlib/workflow/expm.py
@@ -231,9 +231,11 @@ def _get_or_create_exp(self, experiment_id=None, experiment_name=None) -> (objec
 
             # NOTE: mlflow doesn't consider the lock for recording multiple runs
             # So we supported it in the interface wrapper
+            from urllib.request import url2pathname
             pr = urlparse(self.uri)
             if pr.scheme == "file":
-                with FileLock(Path(os.path.join(pr.netloc, pr.path.lstrip("/"), "filelock"))):  # pylint: disable=E0110
+                lock_path = Path(url2pathname(pr.path)) / "filelock"
+                with FileLock(lock_path):
                     return self.create_exp(experiment_name), True
             # NOTE: for other schemes like http, we double check to avoid create exp conflicts
             try: