diff --git a/apps/terminal/models/storage.py b/apps/terminal/models/storage.py
index 857d3c77d..4ddab1bcc 100644
--- a/apps/terminal/models/storage.py
+++ b/apps/terminal/models/storage.py
@@ -1,5 +1,6 @@
 from __future__ import unicode_literals
 
+import copy
 import os
 
 from importlib import import_module
@@ -77,14 +78,14 @@ class CommandStorage(CommonStorageModelMixin, CommonModelMixin):
     def config(self):
         config = self.meta
         config.update({'TYPE': self.type})
-        return config
+        return copy.deepcopy(config)
 
     @property
     def valid_config(self):
         config = self.config
         if self.type_es and config.get('INDEX_BY_DATE'):
             engine_mod = import_module(TYPE_ENGINE_MAPPING[self.type])
-            store = engine_mod.CommandStore(dict(**config))
+            store = engine_mod.CommandStore(config)
             store._ensure_index_exists()
             index_prefix = config.get('INDEX') or 'jumpserver'
             date = local_now_date_display()