diff --git a/Doc/ACKS b/Doc/ACKS
index b58abf8..901d66c 100644
--- a/Doc/ACKS
+++ b/Doc/ACKS
@@ -99,6 +99,7 @@
 Dale Nagata
 Koray Oner
 Denis S. Otkidach
+William Park
 Tim Peters
 Christopher Petrilli
 Justin D. Pettit