diff --git a/packages/nuxt/src/app/composables/ssr.ts b/packages/nuxt/src/app/composables/ssr.ts
index f4c30eca8c..9b2e883af4 100644
--- a/packages/nuxt/src/app/composables/ssr.ts
+++ b/packages/nuxt/src/app/composables/ssr.ts
@@ -4,8 +4,8 @@ import { setResponseStatus as _setResponseStatus } from 'h3'
 import type { NuxtApp } from '../nuxt'
 import { useNuxtApp } from '../nuxt'
 
-export function useRequestHeaders<K extends string = string> (include: K[]): Record<Lowercase<K>, string | undefined>
-export function useRequestHeaders (): Readonly<Record<string, string | undefined>>
+export function useRequestHeaders<K extends string = string> (include: K[]): { [key in Lowercase<K>]?: string }
+export function useRequestHeaders (): Readonly<Record<string, string>>
 export function useRequestHeaders (include?: any[]) {
   if (process.client) { return {} }
   const headers = useNuxtApp().ssrContext?.event.node.req.headers ?? {}
diff --git a/test/fixtures/basic/types.ts b/test/fixtures/basic/types.ts
index 61eb67d5b4..b76f065b0d 100644
--- a/test/fixtures/basic/types.ts
+++ b/test/fixtures/basic/types.ts
@@ -260,6 +260,17 @@ describe('composables', () => {
     expectTypeOf(useLazyFetch('/api/hey', { default: () => 'bar', transform: v => v.foo }).data).toEqualTypeOf<Ref<string | null>>()
   })
 
+  it('uses types compatible between useRequestHeaders and useFetch', () => {
+    useFetch('/api/hey', {
+      headers: useRequestHeaders()
+    })
+    useFetch('/api/hey', {
+      headers: useRequestHeaders(['test'])
+    })
+    const { test } = useRequestHeaders(['test'])
+    expectTypeOf(test).toEqualTypeOf<string | undefined>()
+  })
+
   it('correctly types returns with key signatures', () => {
     interface TestType {
       id: string