diff --git a/Doc/ACKS b/Doc/ACKS
index e5d6297..c70306f 100644
--- a/Doc/ACKS
+++ b/Doc/ACKS
@@ -175,6 +175,7 @@
 Reuben Sumner
 Kalle Svensson
 Jim Tittsler
+Ville Vainio
 Martijn Vries
 Charles G. Waldman
 Greg Ward