diff --git a/api-customer/app.py b/api-customer/app.py
index 8aa58e2f..a9cbf818 100644
--- a/api-customer/app.py
+++ b/api-customer/app.py
@@ -16,7 +16,7 @@ if __name__ == '__main__':
     local_broker = MQTTService(
         "127.0.0.1",
         1883,
-        username="Pi-1",
+        username="pi-1",
         password="hepl",
     )