diff --git a/Misc/ACKS b/Misc/ACKS
index 266e7c48247..00ef5e38ad9 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1488,6 +1488,7 @@ Collin Winter
 Dik Winter
 Blake Winton
 Jean-Claude Wippler
+Stéphane Wirtel
 Lars Wirzenius
 John Wiseman
 Chris Withers