diff --git a/test/types/fetch.test-d.ts b/test/types/fetch.test-d.ts
index e5607e1e51b..0d40b68539e 100644
--- a/test/types/fetch.test-d.ts
+++ b/test/types/fetch.test-d.ts
@@ -178,8 +178,6 @@ expectType<Promise<Uint8Array>>(response.bytes())
 expectType<Promise<unknown>>(response.json())
 expectType<Promise<string>>(response.text())
 expectType<Response>(response.clone())
-expectAssignable<globalThis.Response>(response)
-expectAssignable<Promise<globalThis.Response>>(fetch(request))
 
 expectType<Request>(new Request('https://example.com', { body: 'Hello, world', duplex: 'half' }))
 expectAssignable<RequestInit>({ duplex: 'half' })
diff --git a/types/formdata.d.ts b/types/formdata.d.ts
index 5244e04559f..b9819a7e725 100644
--- a/types/formdata.d.ts
+++ b/types/formdata.d.ts
@@ -4,12 +4,6 @@
 import { File } from 'node:buffer'
 import { SpecIterableIterator } from './fetch'
 
-declare module 'node:buffer' {
-  interface File {
-    readonly [Symbol.toStringTag]: string
-  }
-}
-
 /**
  * A `string` or `File` that represents a single value from a set of `FormData` key-value pairs.
  */