diff --git a/THANKS b/THANKS
index ded7de60..e58c4289 100644
--- a/THANKS
+++ b/THANKS
@@ -20,6 +20,9 @@ We would like to thank
  * Mark Glines (for his compression patch) 
  * Nick Patavalis (RedHat package)
  * Alessandro Gatti (for helping us support Darwin)
+ * Ivo van Dong (for help during the early versions of tinc)
+ * Jeroen Ubbink (for help testing tinc on Free- and NetBSD)
+ * LarstiQ (for help testing tinc on MacOS/X)
 
 for their help, support and ideas.  Thank you guys!