diff --git a/frontend/src/pages/api/mock-backend/private/alias.ts b/frontend/src/pages/api/mock-backend/private/alias.ts
deleted file mode 100644
index 6a4544602..000000000
--- a/frontend/src/pages/api/mock-backend/private/alias.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
- *
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-import type { Alias, NewAliasDto } from '../../../../api/alias/types'
-import { HttpMethod, respondToMatchingRequest } from '../../../../handler-utils/respond-to-matching-request'
-import type { NextApiRequest, NextApiResponse } from 'next'
-
-const handler = (req: NextApiRequest, res: NextApiResponse) => {
-  respondToMatchingRequest<Alias>(
-    HttpMethod.POST,
-    req,
-    res,
-    {
-      name: (req.body as NewAliasDto).newAlias,
-      noteId: (req.body as NewAliasDto).noteIdOrAlias,
-      primaryAlias: false
-    },
-    201
-  )
-}
-
-export default handler