diff --git a/Doc/library/stat.rst b/Doc/library/stat.rst
index 5c5f1858ba44768..f3210dd59275542 100644
--- a/Doc/library/stat.rst
+++ b/Doc/library/stat.rst
@@ -336,11 +336,11 @@ The following flags can also be used in the *mode* argument of :func:`os.chmod`:
 
 .. data:: S_IREAD
 
-   Unix V7 synonym for :data:`S_IRUSR`.
+   Unix V7 synonym for :data:`S_IRUSR`, also used on Windows.
 
 .. data:: S_IWRITE
 
-   Unix V7 synonym for :data:`S_IWUSR`.
+   Unix V7 synonym for :data:`S_IWUSR`, also used on Windows.
 
 .. data:: S_IEXEC