socket.sendfile() is a method not a module
diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index 13f83c6..30f1605 100644
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -1102,7 +1102,7 @@
    .. note::
 
       For a higher-level wrapper of :func:`sendfile`, see
-      :mod:`socket.socket.sendfile`.
+      :meth:`socket.socket.sendfile`.
 
    .. versionadded:: 3.3