diff --git a/packages/backend/src/core/AccountMoveService.ts b/packages/backend/src/core/AccountMoveService.ts
index 17f6f3169edd..ec1d013922b7 100644
--- a/packages/backend/src/core/AccountMoveService.ts
+++ b/packages/backend/src/core/AccountMoveService.ts
@@ -228,7 +228,7 @@ export class AccountMoveService {
 			},
 		}).then(joinings => joinings.map(joining => joining.userListId));
 
-		const newJoinings: Map<string, { createdAt: Date; userId: string; userListId: string; userListUserId: string; }> = new Map();
+		const newJoinings: Map<string, { createdAt: Date; userId: string; userListId: string; }> = new Map();
 
 		// 重複しないようにIDを生成
 		const genId = (): string => {
@@ -244,7 +244,6 @@ export class AccountMoveService {
 				createdAt: new Date(),
 				userId: dst.id,
 				userListId: joining.userListId,
-				userListUserId: joining.userListUserId,
 			});
 		}
 
diff --git a/packages/backend/src/core/UserListService.ts b/packages/backend/src/core/UserListService.ts
index 98f32fbbfb5d..93dc5edbbafe 100644
--- a/packages/backend/src/core/UserListService.ts
+++ b/packages/backend/src/core/UserListService.ts
@@ -97,7 +97,6 @@ export class UserListService implements OnApplicationShutdown {
 			createdAt: new Date(),
 			userId: target.id,
 			userListId: list.id,
-			userListUserId: list.userId,
 		} as MiUserListJoining);
 
 		this.globalEventService.publishInternalEvent('userListMemberAdded', { userListId: list.id, memberId: target.id });