diff --git a/Misc/ACKS b/Misc/ACKS
index e739534..a87cdd8 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -607,6 +607,7 @@
 Bill Tutt
 Doobee R. Tzeck
 Lionel Ulmer
+Michael Urman
 Hector Urtubia
 Dmitry Vasiliev
 Frank Vercruesse