diff --git a/src/emu.cpp b/src/emu.cpp
index 7b160fc..f3b6d85 100644
--- a/src/emu.cpp
+++ b/src/emu.cpp
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2022 Riyyi
+ * Copyright (C) 2022 Th3FrankXD
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 #include <cstdint> // uint32_t
 #include <string_view>
 
diff --git a/src/emu.h b/src/emu.h
index 5f16a56..d7623cc 100644
--- a/src/emu.h
+++ b/src/emu.h
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2022 Riyyi
+ * Copyright (C) 2022 Th3FrankXD
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
 #pragma once
 
 #include <cstdint> // uint32_t
diff --git a/src/main.cpp b/src/main.cpp
index 08c2c7c..3cfac14 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,4 +1,9 @@
-#include <cstdio>
+/*
+ * Copyright (C) 2022 Riyyi
+ * Copyright (C) 2022 Th3FrankXD
+ *
+ * SPDX-License-Identifier: MIT
+ */
 
 #include "cpu.h"
 #include "emu.h"