diff --git a/gtk2_ardour/about.cc b/gtk2_ardour/about.cc
index 5a6fe579d1..1793e5b024 100644
--- a/gtk2_ardour/about.cc
+++ b/gtk2_ardour/about.cc
@@ -147,6 +147,7 @@ static const char* authors[] = {
 	N_("Sam Chessman"),
 	N_("André Colomb"),
 	N_("Paul Davis"),
+	N_("Simon Dixon"),
 	N_("Gerard van Dongen"),
 	N_("John Emmas"),
 	N_("Colin Fletcher"),
@@ -175,6 +176,7 @@ static const char* authors[] = {
 	N_("Joshua Leach"),
 	N_("Jan Lentfer"),
 	N_("Ben Loftis"),
+	N_("Matthias Mauch"),
 	N_("Nick Mainsbridge"),
 	N_("Tim Mayberry"),
 	N_("Doug Mclain"),