diff --git a/csst_dfs_api/facility/level0prc.py b/csst_dfs_api/facility/level0prc.py
index d92bc39a02f1e4997d92c1822f924a47a9c1a18b..fb0e7e86984697dd69ff5147e9b1e9364cf61916 100644
--- a/csst_dfs_api/facility/level0prc.py
+++ b/csst_dfs_api/facility/level0prc.py
@@ -37,7 +37,7 @@ class Level0PrcApi(object):
         ''' insert a level0 procedure record into database
 
         :param kwargs: Parameter dictionary, key items support:
-            level0_id : [str]
+            level0_id : [int] internal id of level0 data
             pipeline_id : [str]
             prc_module : [str]
             run_id : [str]