diff --git a/web-next/app/[locale]/log-out/route.ts b/web-next/app/[locale]/log-out/route.ts
index e92c812..2bdf192 100644
--- a/web-next/app/[locale]/log-out/route.ts
+++ b/web-next/app/[locale]/log-out/route.ts
@@ -18,5 +18,5 @@ export async function GET(_request: Request, { params }: { params: Promise<{ loc
   const session = await getSession()
   session.destroy()
 
-  return new NextResponse(null, { status: 303, headers: { Location: `/${loc}` } })
+  return new NextResponse(null, { status: 303, headers: { Location: `/${loc}/` } })
 }
diff --git a/web-next/app/[locale]/login/LoginForm.tsx b/web-next/app/[locale]/login/LoginForm.tsx
index 1efc234..0378039 100644
--- a/web-next/app/[locale]/login/LoginForm.tsx
+++ b/web-next/app/[locale]/login/LoginForm.tsx
@@ -38,7 +38,7 @@ export function LoginForm() {
         // Navegación completa (no del lado cliente): fuerza que el servidor
         // re-renderice el layout/cabecera con la sesión nueva. Con router.push
         // el layout persiste y la cabecera seguía mostrando "Conectar".
-        window.location.assign(`/${locale}${data.needsSelection ? '/select-account' : '/my-account'}`)
+        window.location.assign(`/${locale}${data.needsSelection ? '/select-account/' : '/my-account/'}`)
         return
       } else {
         const key = (ERROR_KEYS as readonly string[]).includes(data.error ?? '') ? data.error! : 'genericError'
diff --git a/web-next/app/[locale]/select-account/SelectAccountForm.tsx b/web-next/app/[locale]/select-account/SelectAccountForm.tsx
index 0eb5ea1..535b5b0 100644
--- a/web-next/app/[locale]/select-account/SelectAccountForm.tsx
+++ b/web-next/app/[locale]/select-account/SelectAccountForm.tsx
@@ -28,7 +28,7 @@ export function SelectAccountForm({ accounts }: { accounts: GameAccount[] }) {
       })
       const data: { success?: boolean } = await res.json()
       // Navegación completa: re-renderiza el layout/cabecera con la cuenta ya elegida.
-      if (data.success) window.location.assign(`/${locale}/my-account`)
+      if (data.success) window.location.assign(`/${locale}/my-account/`)
       else {
         setError(t('error'))
         setBusy(null)
diff --git a/web-next/components/SiteHeader.tsx b/web-next/components/SiteHeader.tsx
index d14ee71..b6a7fe6 100644
--- a/web-next/components/SiteHeader.tsx
+++ b/web-next/components/SiteHeader.tsx
@@ -118,7 +118,7 @@ export function SiteHeader({
                   <Link href="/my-account">MI CUENTA</Link>
                 </p>
                 <p>
-                  <a href={`/${locale}/log-out`}>DESCONECTAR</a>
+                  <a href={`/${locale}/log-out/`}>DESCONECTAR</a>
                 </p>
               </div>
             </div>
diff --git a/web-next/next.config.ts b/web-next/next.config.ts
index a8b2d2e..72ff0e1 100644
--- a/web-next/next.config.ts
+++ b/web-next/next.config.ts
@@ -4,7 +4,8 @@ import createNextIntlPlugin from 'next-intl/plugin'
 const withNextIntl = createNextIntlPlugin('./i18n/request.ts')
 
 const nextConfig: NextConfig = {
-  /* config options here */
+  // URLs con barra final (/es/ en vez de /es), como el sitio original.
+  trailingSlash: true,
 }
 
 export default withNextIntl(nextConfig)