diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3fd1b7f899..85f5da28dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,6 +26,7 @@
 - Enhance: セキュリティ向上のため、ログイン時にメール通知を行うように
 - Enhance: 自分とモデレーター以外のユーザーから二要素認証関連のデータが取得できないように
 - Enhance: 通報および通報解決時に送出されるSystemWebhookにユーザ情報を含めるように ( #14697 )
+- Fix: `admin/abuse-user-reports`エンドポイントのスキーマが間違っていた問題を修正
 
 ## 2024.9.0
 
diff --git a/packages/backend/src/server/api/endpoints/admin/abuse-user-reports.ts b/packages/backend/src/server/api/endpoints/admin/abuse-user-reports.ts
index cf3f257ca6..0dbfaae054 100644
--- a/packages/backend/src/server/api/endpoints/admin/abuse-user-reports.ts
+++ b/packages/backend/src/server/api/endpoints/admin/abuse-user-reports.ts
@@ -71,9 +71,22 @@ export const meta = {
 				},
 				assignee: {
 					type: 'object',
-					nullable: true, optional: true,
+					nullable: true, optional: false,
 					ref: 'UserDetailedNotMe',
 				},
+				forwarded: {
+					type: 'boolean',
+					nullable: false, optional: false,
+				},
+				resolvedAs: {
+					type: 'string',
+					nullable: true, optional: false,
+					enum: ['accept', 'reject', null],
+				},
+				moderationNote: {
+					type: 'string',
+					nullable: false, optional: false,
+				},
 			},
 		},
 	},
@@ -88,7 +101,6 @@ export const paramDef = {
 		state: { type: 'string', nullable: true, default: null },
 		reporterOrigin: { type: 'string', enum: ['combined', 'local', 'remote'], default: 'combined' },
 		targetUserOrigin: { type: 'string', enum: ['combined', 'local', 'remote'], default: 'combined' },
-		forwarded: { type: 'boolean', default: false },
 	},
 	required: [],
 } as const;
diff --git a/packages/misskey-js/src/autogen/types.ts b/packages/misskey-js/src/autogen/types.ts
index 43f18bb680..76ef7ea1fb 100644
--- a/packages/misskey-js/src/autogen/types.ts
+++ b/packages/misskey-js/src/autogen/types.ts
@@ -5270,8 +5270,6 @@ export type operations = {
            * @enum {string}
            */
           targetUserOrigin?: 'combined' | 'local' | 'remote';
-          /** @default false */
-          forwarded?: boolean;
         };
       };
     };
@@ -5298,7 +5296,11 @@ export type operations = {
               assigneeId: string | null;
               reporter: components['schemas']['UserDetailedNotMe'];
               targetUser: components['schemas']['UserDetailedNotMe'];
-              assignee?: components['schemas']['UserDetailedNotMe'] | null;
+              assignee: components['schemas']['UserDetailedNotMe'] | null;
+              forwarded: boolean;
+              /** @enum {string|null} */
+              resolvedAs: 'accept' | 'reject' | null;
+              moderationNote: string;
             })[];
         };
       };