diff --git a/Components/interface/ShadowMapManager.hpp b/Components/interface/ShadowMapManager.hpp
index f8ff2083..2897ad0f 100644
--- a/Components/interface/ShadowMapManager.hpp
+++ b/Components/interface/ShadowMapManager.hpp
@@ -1,5 +1,5 @@
 /*
- *  Copyright 2019-2023 Diligent Graphics LLC
+ *  Copyright 2019-2024 Diligent Graphics LLC
  *  Copyright 2015-2019 Egor Yusov
  *
  *  Licensed under the Apache License, Version 2.0 (the "License");
@@ -25,6 +25,8 @@
  *  of the possibility of such damages.
  */
 
+#pragma once
+
 #include <vector>
 #include <array>