diff --git a/src/frontend_common/CMakeLists.txt b/src/frontend_common/CMakeLists.txt
index 83638476bf..aa44740596 100644
--- a/src/frontend_common/CMakeLists.txt
+++ b/src/frontend_common/CMakeLists.txt
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 # SPDX-FileCopyrightText: 2023 yuzu Emulator Project
 # SPDX-License-Identifier: GPL-2.0-or-later
 
diff --git a/src/frontend_common/data_manager.cpp b/src/frontend_common/data_manager.cpp
index 21e2422a42..4a63ed9e28 100644
--- a/src/frontend_common/data_manager.cpp
+++ b/src/frontend_common/data_manager.cpp
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 #include "data_manager.h"
 #include "common/assert.h"
 #include "common/fs/path_util.h"
diff --git a/src/frontend_common/data_manager.h b/src/frontend_common/data_manager.h
index 70ac2ca47e..f6ae836c14 100644
--- a/src/frontend_common/data_manager.h
+++ b/src/frontend_common/data_manager.h
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 #ifndef DATA_MANAGER_H
 #define DATA_MANAGER_H
 
diff --git a/src/qt_common/qt_string_lookup.h b/src/qt_common/qt_string_lookup.h
index 4898516b72..028d301f37 100644
--- a/src/qt_common/qt_string_lookup.h
+++ b/src/qt_common/qt_string_lookup.h
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 #pragma once
 
 #include <QString>
diff --git a/src/yuzu/data_dialog.cpp b/src/yuzu/data_dialog.cpp
index af2d858125..4e61a452bf 100644
--- a/src/yuzu/data_dialog.cpp
+++ b/src/yuzu/data_dialog.cpp
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 #include "data_dialog.h"
 #include "frontend_common/data_manager.h"
 #include "qt_common/qt_content_util.h"
diff --git a/src/yuzu/data_dialog.h b/src/yuzu/data_dialog.h
index 51bd0a4353..eab1def7d0 100644
--- a/src/yuzu/data_dialog.h
+++ b/src/yuzu/data_dialog.h
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 #ifndef DATA_DIALOG_H
 #define DATA_DIALOG_H