diff --git a/Doc/ACKS b/Doc/ACKS
index 703e9d0..31bec41 100644
--- a/Doc/ACKS
+++ b/Doc/ACKS
@@ -124,6 +124,7 @@
 Koray Oner
 Denis S. Otkidach
 William Park
+Joonas Paalasmaa
 Harri Pasanen
 Tim Peters
 Christopher Petrilli