diff --git a/pep-3107.txt b/pep-3107.txt
index 609f44c2c..6bf730d2c 100644
--- a/pep-3107.txt
+++ b/pep-3107.txt
@@ -236,8 +236,8 @@ The ``Parameter`` object may change or other changes may be warranted.
 Implementation
 ==============
 
-A sample implementation for the syntax changes has been provided
-[#implementation]_ by Tony Lownds.  
+A reference implementation has been checked into the p3yk branch
+as revision 53170 [#implementation]_.
 
 
 Rejected Proposals
@@ -297,7 +297,7 @@ References and Footnotes
    http://mail.python.org/pipermail/python-3000/2006-June/002438.html
 
 .. [#implementation]
-   http://python.org/sf/1607548
+   http://svn.python.org/view?rev=53170&view=rev
    
 .. [#grammar]
    http://www.python.org/doc/current/ref/function.html