diff --git a/source/tools/atlas/GameInterface/Messages.h b/source/tools/atlas/GameInterface/Messages.h
index 2fa4780..a486d93 100644
--- a/source/tools/atlas/GameInterface/Messages.h
+++ b/source/tools/atlas/GameInterface/Messages.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2022 Wildfire Games.
+/* Copyright (C) 2023 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -18,13 +18,15 @@
 #ifndef INCLUDED_MESSAGES
 #define INCLUDED_MESSAGES
 
+#include <cstdint>
+#include <string>
+#include <vector>
+
+// Opens namespace AtlasMessage, closes it on second inclusion!
 #ifndef MESSAGES_SKIP_SETUP
 #include "MessagesSetup.h"
 #endif
 
-#include <vector>
-#include <string>
-
 // TODO: organisation, documentation, etc
 
 #ifdef _MSC_VER // (can't use MSC_VERSION here since this file is included by Atlas too)