Fixed UnboundLocalError for nested scopes
diff --git a/Misc/ACKS b/Misc/ACKS
index c788fff..e7c8853 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -248,6 +248,7 @@
 Doug Marien
 Anthony Martin
 Roger Masse
+Nick Mathewson
 Graham Matthews
 Dieter Maurer
 Greg McFarlane