From 1e2d00ae6f658601144a49d897d506705caae273 Mon Sep 17 00:00:00 2001
From: Himanshu Kumar Dutt <adasimobenio@gmail.com>
Date: Sat, 23 Aug 2025 21:54:12 +0530
Subject: [PATCH] fix: update validation return type for unknown pages router

---
 packages/next/src/server/lib/router-utils/typegen.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/next/src/server/lib/router-utils/typegen.ts b/packages/next/src/server/lib/router-utils/typegen.ts
index a04cddac5891e..e0ed4a597ec35 100644
--- a/packages/next/src/server/lib/router-utils/typegen.ts
+++ b/packages/next/src/server/lib/router-utils/typegen.ts
@@ -565,7 +565,7 @@ export function generateValidatorFile(
 
   if (pagesApiRouteValidations) {
     typeDefinitions += `type ApiRouteConfig = {
-  default: (req: any, res: any) => Promise<Response | void> | Response | void
+  default: (req: any, res: any) => Promise<Response | void> | Response | void | unknown
   config?: {
     api?: {
       bodyParser?: boolean | { sizeLimit?: string }