diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index c31a114..cebae2d 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -3,3 +3,4 @@ Thank you very much for your help and advices!
 - Ivaylo Dimitrov (freemangordon)
 - Merlijn Wajer (Wizzup)
 - Giovanni Rapagnani
+- Johny Mattsson