diff --git a/Lib/pathlib.py b/Lib/pathlib.py
index bb440c9d572..69e7d558a05 100644
--- a/Lib/pathlib.py
+++ b/Lib/pathlib.py
@@ -1,3 +1,10 @@
+"""Object-oriented filesystem paths.
+
+This module provides classes to represent abstract paths and concrete
+paths with operations that have semantics appropriate for different
+operating systems.
+"""
+
 import fnmatch
 import functools
 import io