1 files changed, 9 insertions, 0 deletions
diff --git a/src/core/config/ivalue.hh b/src/core/config/ivalue.hh
index 13e9a3a..088276a 100644
--- a/src/core/config/ivalue.hh
+++ b/src/core/config/ivalue.hh
@@ -1,3 +1,10 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: ivalue.hh
+// Description: Base config value interface
+
+#ifndef CORE_CONFIG_IVALUE_HH
+#define CORE_CONFIG_IVALUE_HH
 #pragma once
 
 namespace config
@@ -9,3 +16,5 @@ public:
     virtual std::string_view get(void) const = 0;
 };
 } // namespace config
+
+#endif