diff --git a/docs/custom_conf.py b/docs/custom_conf.py
index d2e716273..4b58be54c 100644
--- a/docs/custom_conf.py
+++ b/docs/custom_conf.py
@@ -1,5 +1,5 @@
 # ruff: noqa
-import datetime 
+import datetime
 import pathlib
 import sys
 
@@ -318,9 +318,11 @@ def _compute_navigation_tree(context):
     ('py:class', '_Writeable'),
     ('py:class', 'ops.charm._ContainerBaseDict'),
     ('py:class', 'ops.model._AddressDict'),
+    ('py:class', 'ops.model._GenericLazyMapping'),
     ('py:class', 'ops.model._ModelBackend'),
     ('py:class', 'ops.model._ModelCache'),
     ('py:class', 'ops.model._NetworkDict'),
+    ('py:class', 'ops.model._SupportsKeysAndGetItem'),
     ('py:class', 'ops.pebble._FileLikeIO'),
     ('py:class', 'ops.pebble._IOSource'),
     ('py:class', 'ops.pebble._ServiceInfoDict'),