diff --git a/Misc/ACKS b/Misc/ACKS
index b198114..7ea63cc 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -521,6 +521,7 @@
 Nicholas Riley
 Jean-Claude Rimbault
 Anthony Roach
+Mark Roberts
 Andy Robinson
 Jim Robinson
 Kevin Rodgers