diff --git a/csst_common/data_manager.py b/csst_common/data_manager.py
index f6e6d8dfb5584d851ffd8862087b4c7246438945..3d4d2de3078f30eacacbcc184579d1f8310fec2e 100644
--- a/csst_common/data_manager.py
+++ b/csst_common/data_manager.py
@@ -118,6 +118,8 @@ class CsstMsDataManager:
         The joblib backend.
     device : str
         The device for neural network. "CPU" or "GPU".
+    stamps : str
+        The time stamps.
 
     Examples
     --------