diff --git a/CREDITS b/CREDITS
index 561bc84d..df91158d 100644
--- a/CREDITS
+++ b/CREDITS
@@ -77,3 +77,7 @@ Vlad Glagolev
       suite.
     - Submitted an OpenBSD port for fwknop-2.0.3, and this has been checked in
       under extras/openbsd/.
+
+Sean Greven
+    - Created a port of fwknop for FreeBSD:
+http://portsmon.freebsd.org/portoverview.py?category=security&portname=fwknop