diff --git a/copyright.txt b/copyright.txt
index cb05a301e..f9033b73c 100644
--- a/copyright.txt
+++ b/copyright.txt
@@ -8,6 +8,7 @@ Ewald Volkert
 Gunnar Morling
 Michael Pardo
 Paul Strugnell
+Remko Plantenga
 Sebastian Hasait
 Sjaak Derksen
 Timo Eckhardt