diff --git a/Doc/ACKS b/Doc/ACKS
index 2c89e2a..14a5ca8 100644
--- a/Doc/ACKS
+++ b/Doc/ACKS
@@ -93,6 +93,7 @@
 Jack Jansen
 Philip H. Jensen
 Pedro Diaz Jimenez
+Kent Johnson
 Lucas de Jonge
 Andreas Jung
 Robert Kern