diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index c6b372b184a651..9d3323c73f51fe 100644
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -404,10 +404,12 @@ Miscellaneous options
 
    Warn about Python 3.x possible incompatibilities by emitting a
    :exc:`DeprecationWarning` for features that are removed or significantly
-   changed in Python 3.
+   changed in Python 3 and can't be detected using static code analysis.
 
    .. versionadded:: 2.6
 
+   See :doc:`/howto/pyporting` for more details.
+
 Options you shouldn't use
 ~~~~~~~~~~~~~~~~~~~~~~~~~