diff --git a/src/common/x64/xbyak_abi.h b/src/common/x64/xbyak_abi.h
index 24ffe09eb8..92a06f3f96 100644
--- a/src/common/x64/xbyak_abi.h
+++ b/src/common/x64/xbyak_abi.h
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: 2016 Citra Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
diff --git a/src/common/x64/xbyak_util.h b/src/common/x64/xbyak_util.h
index 800b25d6f4..cb40016ecf 100644
--- a/src/common/x64/xbyak_util.h
+++ b/src/common/x64/xbyak_util.h
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: 2016 Citra Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later