diff --git a/Doc/library/copy.rst b/Doc/library/copy.rst
index 89b668d5f9f..ce127a36335 100644
--- a/Doc/library/copy.rst
+++ b/Doc/library/copy.rst
@@ -63,7 +63,7 @@ of lists by assigning a slice of the entire list, for example,
 
 Classes can use the same interfaces to control copying that they use to control
 pickling.  See the description of module :mod:`pickle` for information on these
-methods.  The :mod:`copy` module does not use the :mod:`copy_reg` registration
+methods.  The :mod:`copy` module does not use the :mod:`copyreg` registration
 module.
 
 .. index::
diff --git a/Doc/library/copy_reg.rst b/Doc/library/copyreg.rst
similarity index 76%
rename from Doc/library/copy_reg.rst
rename to Doc/library/copyreg.rst
index 407044c4bb2..3a3f815de85 100644
--- a/Doc/library/copy_reg.rst
+++ b/Doc/library/copyreg.rst
@@ -1,19 +1,23 @@
-
-:mod:`copy_reg` --- Register :mod:`pickle` support functions
-============================================================
+:mod:`copyreg` --- Register :mod:`pickle` support functions
+===========================================================
 
 .. module:: copy_reg
+   :synopsis: Old name for the copyreg module.
+
+.. module:: copyreg
    :synopsis: Register pickle support functions.
 
 .. note::
-    The :mod:`copy_reg` module has been renamed to `copyreg` in Python 3.0.
+   The :mod:`copy_reg` module has been renamed to :mod:`copyreg` in Python 3.0.
+   It is importable under both names in Python 2.6 and the rest of the 2.x
+   series.
 
 .. index::
    module: pickle
    module: cPickle
    module: copy
 
-The :mod:`copy_reg` module provides support for the :mod:`pickle` and
+The :mod:`copyreg` module provides support for the :mod:`pickle` and
 :mod:`cPickle` modules.  The :mod:`copy` module is likely to use this in the
 future as well.  It provides configuration information about object constructors
 which are not classes.  Such constructors may be factory functions or class
diff --git a/Doc/library/persistence.rst b/Doc/library/persistence.rst
index 78e40f64460..3708d17fb8e 100644
--- a/Doc/library/persistence.rst
+++ b/Doc/library/persistence.rst
@@ -19,7 +19,7 @@ The list of modules described in this chapter is:
 .. toctree::
 
    pickle.rst
-   copy_reg.rst
+   copyreg.rst
    shelve.rst
    marshal.rst
    anydbm.rst
diff --git a/Doc/library/pickle.rst b/Doc/library/pickle.rst
index f19726159fe..eefa4d33b83 100644
--- a/Doc/library/pickle.rst
+++ b/Doc/library/pickle.rst
@@ -535,7 +535,7 @@ not :meth:`__reduce_ex__`, the :meth:`__reduce_ex__` implementation detects this
 and calls :meth:`__reduce__`.
 
 An alternative to implementing a :meth:`__reduce__` method on the object to be
-pickled, is to register the callable with the :mod:`copy_reg` module.  This
+pickled, is to register the callable with the :mod:`copyreg` module.  This
 module provides a way for programs to register "reduction functions" and
 constructors for user-defined types.   Reduction functions have the same
 semantics and interface as the :meth:`__reduce__` method described above, except
@@ -786,7 +786,7 @@ the same process or a new process. ::
 
 .. seealso::
 
-   Module :mod:`copy_reg`
+   Module :mod:`copyreg`
       Pickle interface constructor registration for extension types.
 
    Module :mod:`shelve`