diff --git a/Misc/ACKS b/Misc/ACKS
index 87200ec..57d03d7 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -939,6 +939,7 @@
 John Williams
 Sue Williams
 Gerald S. Williams
+Steven Willis
 Frank Willison
 Greg V. Wilson
 J Derek Wilson