diff --git a/pep-0000.txt b/pep-0000.txt
index 64a90bfef..1ce950966 100644
--- a/pep-0000.txt
+++ b/pep-0000.txt
@@ -52,6 +52,7 @@ Index by Category
  S   250  pep-0250.txt  Using site-packages on All Platforms   Moore
  I   251  pep-0251.txt  Python 2.2 Release Schedule            Warsaw
  S   252  pep-0252.txt  Making Types Look More Like Classes    van Rossum
+ S   253  pep-0253.txt  Subtyping Built-in Types               van Rossum
 
  Py-in-the-sky PEPs (not ready; may become active yet)
 
@@ -172,6 +173,7 @@ Numerical Index
  S   250  pep-0250.txt  Using site-packages on All Platforms   Moore
  I   251  pep-0251.txt  Python 2.2 Release Schedule            Warsaw
  S   252  pep-0252.txt  Making Types Look More Like Classes    van Rossum
+ S   253  pep-0253.txt  Subtyping Built-in Types               van Rossum
 
 
 Key
diff --git a/pep-0253.txt b/pep-0253.txt
new file mode 100644
index 000000000..cda94c734
--- /dev/null
+++ b/pep-0253.txt
@@ -0,0 +1,29 @@
+PEP: 253
+Title: Subtyping Built-in Types
+Version: $Revision$
+Author: guido@python.org (Guido van Rossum)
+Status: Draft
+Type: Standards Track
+Python-Version: 2.2
+Created: 14-May-2001
+Post-History:
+
+Abstract
+
+    This PEP proposes ways for creating subtypes of existing built-in
+    types, either in C or in Python.
+
+Introduction
+
+    [XXX to be done.]
+
+
+Copyright
+
+    This document has been placed in the public domain.
+
+
+Local Variables:
+mode: indented-text
+indent-tabs-mode: nil
+End: