Remove duplicate word (rules)
diff --git a/Doc/whatsnew/whatsnew23.tex b/Doc/whatsnew/whatsnew23.tex
index e79f6c4..8235ebd 100644
--- a/Doc/whatsnew/whatsnew23.tex
+++ b/Doc/whatsnew/whatsnew23.tex
@@ -1974,7 +1974,7 @@
Expat.
\item If you dynamically allocate type objects in your extension, you
-should be aware of a change in the rules rules relating to the
+should be aware of a change in the rules relating to the
\member{__module__} and \member{__name__} attributes. In summary,
you will want to ensure the type's dictionary contains a
\code{'__module__'} key; making the module name the part of the type