diff --git a/src/whatsapp/controllers/instance.controller.ts b/src/whatsapp/controllers/instance.controller.ts
index f0adb3a3..4a62982f 100644
--- a/src/whatsapp/controllers/instance.controller.ts
+++ b/src/whatsapp/controllers/instance.controller.ts
@@ -65,7 +65,6 @@ export class InstanceController {
         this.cache,
       );
       instance.instanceName = instanceName
-        .toLowerCase()
         .replace(/[^a-z0-9]/g, '')
         .replace(' ', '');
       this.logger.verbose('instance: ' + instance.instanceName + ' created');