diff --git a/Doc/ACKS b/Doc/ACKS
index 703e9d00e04..31bec41a72e 100644
--- a/Doc/ACKS
+++ b/Doc/ACKS
@@ -124,6 +124,7 @@ Ng Pheng Siong
 Koray Oner
 Denis S. Otkidach
 William Park
+Joonas Paalasmaa
 Harri Pasanen
 Tim Peters
 Christopher Petrilli