diff --git a/mmengine/config/config.py b/mmengine/config/config.py
index 860b60b448cfe40bb8647196ba0884b219c9cb4c..ab61ba1ba5f103d9f079c60b6b78898d2a7b7a3c 100644
--- a/mmengine/config/config.py
+++ b/mmengine/config/config.py
@@ -545,7 +545,7 @@ class Config:
             TypeError: Name of config file.
 
         Returns:
-            list: A list of base config
+            list: A list of base config.
         """
         file_format = filename.partition('.')[-1]
         if file_format == 'py':