diff --git a/src/nostalgia/modules/core/src/tilesheet.cpp b/src/nostalgia/modules/core/src/tilesheet.cpp
index df71f206..ed8e3c28 100644
--- a/src/nostalgia/modules/core/src/tilesheet.cpp
+++ b/src/nostalgia/modules/core/src/tilesheet.cpp
@@ -1,3 +1,6 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
 
 #include <ox/std/size.hpp>
 #include <ox/std/vector.hpp>
diff --git a/src/nostalgia/player/app.hpp b/src/nostalgia/player/app.hpp
index 325ec08f..aef946ac 100644
--- a/src/nostalgia/player/app.hpp
+++ b/src/nostalgia/player/app.hpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2022 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
 #include <ox/std/memory.hpp>