diff --git a/packages/backend/src/server/api/endpoints/antennas/update.ts b/packages/backend/src/server/api/endpoints/antennas/update.ts
index 5f980bdbe..9f25ff464 100644
--- a/packages/backend/src/server/api/endpoints/antennas/update.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/update.ts
@@ -6,67 +6,10 @@ import { AntennaEntityService } from '@/core/entities/AntennaEntityService.js';
 import { DI } from '@/di-symbols.js';
 import { ApiError } from '../../error.js';
 
-export const meta = {
-	tags: ['antennas'],
-
-	requireCredential: true,
-
-	prohibitMoved: true,
-
-	kind: 'write:account',
-
-	errors: {
-		noSuchAntenna: {
-			message: 'No such antenna.',
-			code: 'NO_SUCH_ANTENNA',
-			id: '10c673ac-8852-48eb-aa1f-f5b67f069290',
-		},
-
-		noSuchUserList: {
-			message: 'No such user list.',
-			code: 'NO_SUCH_USER_LIST',
-			id: '1c6b35c9-943e-48c2-81e4-2844989407f7',
-		},
-	},
-
-	res: {
-		type: 'object',
-		optional: false, nullable: false,
-		ref: 'Antenna',
-	},
-} as const;
-
-export const paramDef = {
-	type: 'object',
-	properties: {
-		antennaId: { type: 'string', format: 'misskey:id' },
-		name: { type: 'string', minLength: 1, maxLength: 100 },
-		src: { type: 'string', enum: ['home', 'all', 'users', 'list'] },
-		userListId: { type: 'string', format: 'misskey:id', nullable: true },
-		keywords: { type: 'array', items: {
-			type: 'array', items: {
-				type: 'string',
-			},
-		} },
-		excludeKeywords: { type: 'array', items: {
-			type: 'array', items: {
-				type: 'string',
-			},
-		} },
-		users: { type: 'array', items: {
-			type: 'string',
-		} },
-		caseSensitive: { type: 'boolean' },
-		withReplies: { type: 'boolean' },
-		withFile: { type: 'boolean' },
-		notify: { type: 'boolean' },
-	},
-	required: ['antennaId', 'name', 'src', 'keywords', 'excludeKeywords', 'users', 'caseSensitive', 'withReplies', 'withFile', 'notify'],
-} as const;
-
 // eslint-disable-next-line import/no-default-export
 @Injectable()
-export default class extends Endpoint<typeof meta, typeof paramDef> {
+export default class extends Endpoint<'antennas/update'> {
+	name = 'antennas/update' as const;
 	constructor(
 		@Inject(DI.antennasRepository)
 		private antennasRepository: AntennasRepository,
@@ -77,7 +20,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 		private antennaEntityService: AntennaEntityService,
 		private globalEventService: GlobalEventService,
 	) {
-		super(meta, paramDef, async (ps, me) => {
+		super(async (ps, me) => {
 			// Fetch the antenna
 			const antenna = await this.antennasRepository.findOneBy({
 				id: ps.antennaId,
@@ -85,7 +28,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 			});
 
 			if (antenna == null) {
-				throw new ApiError(meta.errors.noSuchAntenna);
+				throw new ApiError(this.meta.errors.noSuchAntenna);
 			}
 
 			let userList;
@@ -97,7 +40,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 				});
 
 				if (userList == null) {
-					throw new ApiError(meta.errors.noSuchUserList);
+					throw new ApiError(this.meta.errors.noSuchUserList);
 				}
 			}
 
diff --git a/packages/misskey-js/src/endpoints.ts b/packages/misskey-js/src/endpoints.ts
index 9a14004b8..ba4a557db 100644
--- a/packages/misskey-js/src/endpoints.ts
+++ b/packages/misskey-js/src/endpoints.ts
@@ -2142,6 +2142,67 @@ export const endpoints = {
 			},
 		}],
 	},
+	'antennas/update': {
+		tags: ['antennas'],
+	
+		requireCredential: true,
+	
+		prohibitMoved: true,
+	
+		kind: 'write:account',
+	
+		errors: {
+			noSuchAntenna: {
+				message: 'No such antenna.',
+				code: 'NO_SUCH_ANTENNA',
+				id: '10c673ac-8852-48eb-aa1f-f5b67f069290',
+			},
+	
+			noSuchUserList: {
+				message: 'No such user list.',
+				code: 'NO_SUCH_USER_LIST',
+				id: '1c6b35c9-943e-48c2-81e4-2844989407f7',
+			},
+		},
+
+		defines: [{
+			req: {
+				type: 'object',
+				properties: {
+					antennaId: { type: 'string', format: 'misskey:id' },
+					name: { type: 'string', minLength: 1, maxLength: 100 },
+					src: { type: 'string', enum: ['home', 'all', 'users', 'list'] },
+					userListId: {
+						oneOf: [
+							{ type: 'string', format: 'misskey:id' },
+							{ type: 'null' },
+						],
+					},
+					keywords: { type: 'array', items: {
+						type: 'array', items: {
+							type: 'string',
+						},
+					} },
+					excludeKeywords: { type: 'array', items: {
+						type: 'array', items: {
+							type: 'string',
+						},
+					} },
+					users: { type: 'array', items: {
+						type: 'string',
+					} },
+					caseSensitive: { type: 'boolean' },
+					withReplies: { type: 'boolean' },
+					withFile: { type: 'boolean' },
+					notify: { type: 'boolean' },
+				},
+				required: ['antennaId', 'name', 'src', 'keywords', 'excludeKeywords', 'users', 'caseSensitive', 'withReplies', 'withFile', 'notify'],
+			},
+			res: {
+				$ref: 'https://misskey-hub.net/api/schemas/Antenna',
+			},
+		}],
+	},
 	//#endregion
 } as const satisfies { [x: string]: IEndpointMeta; };