diff --git a/Doc/ACKS b/Doc/ACKS
index 8da4837..f01cebf 100644
--- a/Doc/ACKS
+++ b/Doc/ACKS
@@ -167,6 +167,7 @@
 Peter Stoehr
 Mark Summerfield
 Reuben Sumner
+Kalle Svensson
 Jim Tittsler
 Martijn Vries
 Charles G. Waldman