diff --git a/sphinx/conf.py b/sphinx/conf.py
index ef6f7e0..7d7be34 100644
--- a/sphinx/conf.py
+++ b/sphinx/conf.py
@@ -25,6 +25,8 @@
     'sphinx_rtd_theme',
     # 'autoapi.extension',
     'myst_parser',  # For MD support
+    # for internal links
+    'sphinx.ext.autosectionlabel',
 ]