diff --git a/rla_scripts/delete_expt.py b/rla_scripts/delete_expt.py
index 196c041..12fb08c 100644
--- a/rla_scripts/delete_expt.py
+++ b/rla_scripts/delete_expt.py
@@ -12,8 +12,8 @@ def argsparser():
     parser.add_argument('--task_table_name', type=str, default="")
     parser.add_argument('--regex', type=str)
     parser.add_argument('--timestep_bound', type=int, default=100)
-    # Filter.ALL: delete all experiments satisfied regex
-    # Filter.SMALL_TIMESTEP: delete all experiments that the names satisfy regex
+    # Filter.ALL (type  'all' in CLI): delete all experiments satisfied regex
+    # Filter.SMALL_TIMESTEP  (type  'small_ts' in CLI): delete all experiments that the names satisfy regex
     # and the recorded timesteps are less than args.timestep_bound.
     parser.add_argument('--delete_type', type=str, default=Filter.ALL)
 
@@ -31,4 +31,4 @@ def argsparser():
     elif args.delete_type == Filter.SMALL_TIMESTEP:
         dlt.delete_small_timestep_log()
     else:
-        raise NotImplementedError
\ No newline at end of file
+        raise NotImplementedError