diff --git a/Doc/ACKS.txt b/Doc/ACKS.txt
index 2dd3b55..ae34348 100644
--- a/Doc/ACKS.txt
+++ b/Doc/ACKS.txt
@@ -111,6 +111,7 @@
    * Andrew M. Kuchling
    * Dave Kuhlman
    * Erno Kuusela
+   * Ross Lagerwall
    * Thomas Lamb
    * Detlef Lannert
    * Piers Lauder