diff --git a/Misc/ACKS b/Misc/ACKS
index 4dfc84ec832..2731bac5c2a 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -77,6 +77,7 @@ Tim MacKenzie
 Steve Majewski
 Ken Manheimer
 Roger Masse
+Graham Matthews
 Michael McLay
 Lambert Meertens
 Steven Miale