diff --git a/Doc/library/pathlib.rst b/Doc/library/pathlib.rst
index d8fa4a27a28a0b..46a4d10b11d602 100644
--- a/Doc/library/pathlib.rst
+++ b/Doc/library/pathlib.rst
@@ -916,6 +916,10 @@ call fails (for example because the path doesn't exist).
        PosixPath('setup.py'),
        PosixPath('test_pathlib.py')]
 
+   This method calls :meth:`Path.is_dir` on the top-level directory and
+   propagates any :exc:`OSError` exception that is raised. Subsequent
+   :exc:`OSError` exceptions from scanning directories are suppressed.
+
    By default, or when the *case_sensitive* keyword-only argument is set to
    ``None``, this method matches paths using platform-specific casing rules:
    typically, case-sensitive on POSIX, and case-insensitive on Windows.