diff --git a/packages/backend/src/models/json-schema/user.ts b/packages/backend/src/models/json-schema/user.ts
index 2d3129c94..35033e3f4 100644
--- a/packages/backend/src/models/json-schema/user.ts
+++ b/packages/backend/src/models/json-schema/user.ts
@@ -268,7 +268,7 @@ export const packedUserDetailedNotMeOnlySchema = {
 			nullable: true, optional: false,
 			example: '2018-03-12',
 		},
-		ListenBrainz: {
+		listenbrainz: {
 			type: "string",
 			nullable: true,
 			optional: false,
diff --git a/packages/misskey-js/src/autogen/types.ts b/packages/misskey-js/src/autogen/types.ts
index 14b11c288..c088ea637 100644
--- a/packages/misskey-js/src/autogen/types.ts
+++ b/packages/misskey-js/src/autogen/types.ts
@@ -3901,7 +3901,7 @@ export type components = {
       /** @example 2018-03-12 */
       birthday: string | null;
       /** @example Steve */
-      ListenBrainz: string | null;
+      listenbrainz: string | null;
       /** @example ja-JP */
       lang: string | null;
       fields: {