diff --git a/cita.html b/cita.html
index de2000f..d7aba69 100644
--- a/cita.html
+++ b/cita.html
@@ -85,7 +85,7 @@
         </div>
         <h2 class="text-3xl font-black mb-2 relative z-10">Solicitud Enviada</h2>
         <p class="font-medium opacity-90 mb-8 relative z-10">El técnico ha sido avisado de tu preferencia. Recibirás un WhatsApp de confirmación en breve.</p>
-        <button onclick="window.location.href = window.location.href.replace('cita.html', 'portal.html')" class="bg-slate-900 text-white font-black py-4 px-8 rounded-2xl shadow-lg uppercase text-xs tracking-widest relative z-10 active:scale-95 transition-transform">
+        <button onclick="window.location.href = window.location.href.replace(/cit(a|ar)\.html/, 'portal.html')" class="bg-slate-900 text-white font-black py-4 px-8 rounded-2xl shadow-lg uppercase text-xs tracking-widest relative z-10 active:scale-95 transition-transform">
             Volver a mi Ficha
         </button>
     </div>