diff --git a/Lib/configparser.py b/Lib/configparser.py
index 4e3af5f..15fc266 100644
--- a/Lib/configparser.py
+++ b/Lib/configparser.py
@@ -120,7 +120,7 @@
 """
 
 from collections.abc import MutableMapping
-from collections import OrderedDict as _default_dict, _ChainMap
+from collections import OrderedDict as _default_dict, ChainMap as _ChainMap
 import functools
 import io
 import itertools