diff --git a/Misc/ACKS b/Misc/ACKS
index 7fd3baf..88072c1 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1164,6 +1164,7 @@
 Case Roole
 Timothy Roscoe
 Erik Rose
+Mark Roseman
 Jim Roskind
 Brian Rosner
 Guido van Rossum