diff --git a/include/og3/bme280.h b/include/og3/bme280.h
index 56dd677..de0c993 100644
--- a/include/og3/bme280.h
+++ b/include/og3/bme280.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Chris Lee and contibuters.
+// Licensed under the MIT license. See LICENSE file in the project root for details.
+
 #pragma once
 
 #ifndef NATIVE
diff --git a/src/bme280.cpp b/src/bme280.cpp
index 154afe2..4e0f346 100644
--- a/src/bme280.cpp
+++ b/src/bme280.cpp
@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Chris Lee and contibuters.
+// Licensed under the MIT license. See LICENSE file in the project root for details.
+
 #include "og3/bme280.h"
 
 #include <og3/units.h>