diff --git a/CREDITS b/CREDITS
index a0c8eb2fa..ff11cf2d4 100644
--- a/CREDITS
+++ b/CREDITS
@@ -107,4 +107,7 @@ The ipsec starter is based on Mathieu Lafon's original work.
 Jan Hutter and Martin Willi developed the scepclient which fully
 supports Cisco's Simple Certificate Enrollment Protocol (SCEP).
 
+Tobias Brunner and Thomas Roethlisberger implemented NAT traversal and dead
+peer detection for the IKEv2 keying daemon.
+
 This file is RCSID $Id: CREDITS,v 1.6 2006/01/22 21:28:27 as Exp $