diff --git a/src/whatsapp/services/whatsapp.service.ts b/src/whatsapp/services/whatsapp.service.ts
index de916b31..1c48edae 100644
--- a/src/whatsapp/services/whatsapp.service.ts
+++ b/src/whatsapp/services/whatsapp.service.ts
@@ -2321,7 +2321,7 @@ export class WAStartupService {
       let mimetype: string;
 
       // novo critério para adotar mimetype quando nao está presente na url e no filename - inicio
-      if (isURL(mediaMessage.media) || mediaMessage.fileName !== "") {
+      if (isURL(mediaMessage.media) || mediaMessage.fileName) {
       if (isURL(mediaMessage.media)) {
         mimetype = getMIMEType(mediaMessage.media);
       } else {
@@ -2335,6 +2335,7 @@ export class WAStartupService {
         mimetype = 'video/mp4';
       }     
       }
+
       // novo critério para adotar mimetype quando nao está presente na url e no filename - fim
  
       this.logger.verbose('Mimetype: ' + mimetype);