diff --git a/packages/next-auth/src/next/middleware.ts b/packages/next-auth/src/next/middleware.ts
index 469741d214..0b958149a3 100644
--- a/packages/next-auth/src/next/middleware.ts
+++ b/packages/next-auth/src/next/middleware.ts
@@ -184,7 +184,7 @@ export type WithAuthArgs =
  * [Documentation](https://next-auth.js.org/configuration/nextjs#middleware)
  */
 export function withAuth(...args: WithAuthArgs) {
-  if (!args.length || args[0] instanceof NextRequest) {
+  if (!args.length || args[0] instanceof Request) {
     // @ts-expect-error
     return handleMiddleware(...args)
   }