diff --git a/hue2mqtt/mqtt/wrapper.py b/hue2mqtt/mqtt/wrapper.py
index 0fc349f..b24b692 100644
--- a/hue2mqtt/mqtt/wrapper.py
+++ b/hue2mqtt/mqtt/wrapper.py
@@ -82,7 +82,10 @@ async def connect(self) -> None:
 
         if self._broker_info.enable_auth:
             LOGGER.debug("MQTT Auth enabled")
-            self._client.set_auth_credentials(self._broker_info.username,self._broker_info.password)
+            self._client.set_auth_credentials(
+                self._broker_info.username,
+                self._broker_info.password,
+            )
 
         await self._client.connect(
             self._broker_info.host,