diff --git a/Doc/library/threading.rst b/Doc/library/threading.rst
index 47ff74dfc67ff2..565f13ad30bf79 100644
--- a/Doc/library/threading.rst
+++ b/Doc/library/threading.rst
@@ -251,7 +251,7 @@ The instance's values will be different for separate threads.
    A class that represents thread-local data.
 
    For more details and extensive examples, see the documentation string of the
-   :mod:`_threading_local` module.
+   :mod:`_threading_local` module: :source:`Lib/_threading_local.py`.
 
 
 .. _thread-objects: