diff --git a/COPYRIGHT.txt b/COPYRIGHT.txt
index ef23cedf6..4a2d9a9e3 100644
--- a/COPYRIGHT.txt
+++ b/COPYRIGHT.txt
@@ -13,6 +13,7 @@ Emrul Islam
 Eric S. Kreiseir
 Ewen Cheslack-Postava
 Gunnar Morling
+Henryk Konsek
 Horia Chiorean
 Jiri Pechanec
 Jure Kajzer