diff --git a/packages/misskey-js/generator/src/generator.ts b/packages/misskey-js/generator/src/generator.ts
index 93a731ad34..03d17a6c45 100644
--- a/packages/misskey-js/generator/src/generator.ts
+++ b/packages/misskey-js/generator/src/generator.ts
@@ -286,9 +286,9 @@ async function generateApiClientJSDoc(
 
 	endpointOutputLine.push(
 		'interface IErrPromise<TSuccess, TError = unknown> {',
-		'	then<TResult1 = TSuccess, TResult2 = never>(onfulfilled?: ((value: TSuccess) => TResult1 | PromiseLike<TResult1>) | undefined | null, onrejected?: ((reason: TError) => TResult2 | PromiseLike<TResult2>) | undefined | null): Promise<TResult1 | TResult2>;',
+		'  then<TResult1 = TSuccess, TResult2 = never>(onfulfilled?: ((value: TSuccess) => TResult1 | PromiseLike<TResult1>) | undefined | null, onrejected?: ((reason: TError) => TResult2 | PromiseLike<TResult2>) | undefined | null): Promise<TResult1 | TResult2>;',
 		'',
-		'	catch<TResult = never>(onrejected?: ((reason: TError) => TResult | PromiseLike<TResult>) | undefined | null): Promise<TSuccess | TResult>;',
+		'  catch<TResult = never>(onrejected?: ((reason: TError) => TResult | PromiseLike<TResult>) | undefined | null): Promise<TSuccess | TResult>;',
 		'}',
 	);
 	endpointOutputLine.push('');
diff --git a/packages/misskey-js/src/autogen/apiClientJSDoc.ts b/packages/misskey-js/src/autogen/apiClientJSDoc.ts
index 6b4f5c569e..a6bc2383d3 100644
--- a/packages/misskey-js/src/autogen/apiClientJSDoc.ts
+++ b/packages/misskey-js/src/autogen/apiClientJSDoc.ts
@@ -2,9 +2,9 @@ import type { SwitchCaseResponseType } from '../api.js';
 import type { Endpoints } from './endpoint.js';
 
 interface IErrPromise<TSuccess, TError = unknown> {
-	then<TResult1 = TSuccess, TResult2 = never>(onfulfilled?: ((value: TSuccess) => TResult1 | PromiseLike<TResult1>) | undefined | null, onrejected?: ((reason: TError) => TResult2 | PromiseLike<TResult2>) | undefined | null): Promise<TResult1 | TResult2>;
+  then<TResult1 = TSuccess, TResult2 = never>(onfulfilled?: ((value: TSuccess) => TResult1 | PromiseLike<TResult1>) | undefined | null, onrejected?: ((reason: TError) => TResult2 | PromiseLike<TResult2>) | undefined | null): Promise<TResult1 | TResult2>;
 
-	catch<TResult = never>(onrejected?: ((reason: TError) => TResult | PromiseLike<TResult>) | undefined | null): Promise<TSuccess | TResult>;
+  catch<TResult = never>(onrejected?: ((reason: TError) => TResult | PromiseLike<TResult>) | undefined | null): Promise<TSuccess | TResult>;
 }
 
 declare module '../api.js' {