diff --git a/csst_common/data_manager.py b/csst_common/data_manager.py
index 2ff4a8c6902456d2ee7fec72ec51073dde7f98d6..23b06c82fc2632a452482dd002e97a1f7df1acf7 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="L1Pipeline/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