diff --git a/src/server/services/PdfService.ts b/src/server/services/PdfService.ts
index d63f486..9aecc43 100644
--- a/src/server/services/PdfService.ts
+++ b/src/server/services/PdfService.ts
@@ -51,7 +51,7 @@ export class PdfService {
 
   private gerarHTML(content: string, config: any) {
     const timbradoUrl = config.timbradoUrl 
-      ? `${process.env.BACKEND_URL || 'http://localhost:5000'}${config.timbradoUrl}`
+      ? `${process.env.FRONTEND_URL || 'http://localhost:5000'}${config.timbradoUrl}`
       : '';
 
     console.log('Gerando PDF com timbrado:', timbradoUrl);