diff --git a/doc/source/reference.rst b/doc/source/reference.rst
index 13dd38d02..49d732ca2 100644
--- a/doc/source/reference.rst
+++ b/doc/source/reference.rst
@@ -91,6 +91,7 @@ Objects.Util
 .. automodule:: git.objects.util
    :members:
    :undoc-members:
+   :private-members: _get_intermediate_items, _list_traverse, _traverse
    :special-members:
 
 Index.Base