diff --git a/packages/backend/migration/1743558299182-RoleCopyOnMoveAccount.js b/packages/backend/migration/1743558299182-RoleCopyOnMoveAccount.js
index 0ec1bf4dc3..356959d85e 100644
--- a/packages/backend/migration/1743558299182-RoleCopyOnMoveAccount.js
+++ b/packages/backend/migration/1743558299182-RoleCopyOnMoveAccount.js
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 export class RoleCopyOnMoveAccount1743558299182 {
     name = 'RoleCopyOnMoveAccount1743558299182'