diff --git a/src/lib/server.ts b/src/lib/server.ts
index 8d077e7..794fbc4 100644
--- a/src/lib/server.ts
+++ b/src/lib/server.ts
@@ -7,7 +7,7 @@ import type { CookieSerializeOptions } from './cookie-es-main/index.js';
 // Cannot change.
 const cookieName = 'flash';
 
-export const flashCookieOptions: CookieSerializeOptions = {
+export const flashCookieOptions: CookieSerializeOptions & { path: string } = {
   path: '/',
   maxAge: 120,
   httpOnly: false,