diff --git a/csst_common/data_manager.py b/csst_common/data_manager.py
index 2b8c6a5c0686486c744ad59e002dcf3598712913..2283616cc8a8e6425243fbbe04b35db63ab9de0a 100644
--- a/csst_common/data_manager.py
+++ b/csst_common/data_manager.py
@@ -566,7 +566,7 @@ class CsstMsDataManager:
         pass
 
     @staticmethod
-    def from_dfs(obs_id="100000100", datatype="mbi", dir_l0="/L1Pipeline/L0", dir_l1=".",
+    def from_dfs(obs_id="100000100", datatype="mbi", dir_l0="/L1Pipeline/L0", dir_l1="L1Pipeline/L1",
                  dfs_mode=True, dfs_node="pml"):
         """ Initialize CsstMsDataManager from DFS. """
         records = Level0DataApi().find(obs_id=obs_id)  # query DFS