--- a/doc/source/links
+++ b/doc/source/links
@@ -30,7 +30,7 @@
 .. _compound_premise: pyke_syntax/krb_syntax/compound_premise.html
 .. _cooked: `cooking functions`_
 .. _cooking functions: about_pyke/cooking_functions.html
-.. _copy_reg: http://docs.python.org/library/copy_reg.html
+.. _copyreg: http://docs.python.org/3.0/library/copyreg.html
 .. _cut operator: http://en.wikipedia.org/wiki/Cut_%28logic_programming%29
 .. _doctest: http://docs.python.org/library/doctest.html
 .. _doctest-tools: http://code.google.com/p/doctest-tools/