diff --git a/THANKS b/THANKS
index 635a29ac..65c267f8 100644
--- a/THANKS
+++ b/THANKS
@@ -22,6 +22,7 @@ has been important. :-) In alphabetical order:
   - Gilles Espinasse
   - Denis Excoffier
   - Mike Frysinger
+  - Juan Manuel Guerrero
   - Joachim Henke
   - Peter Ivanov
   - Jouk Jansen