diff --git a/src/aioswitcher/device/tools.py b/src/aioswitcher/device/tools.py
index 62c0da9a..1275612f 100644
--- a/src/aioswitcher/device/tools.py
+++ b/src/aioswitcher/device/tools.py
@@ -30,6 +30,7 @@
 
 logger = getLogger(__name__)
 
+
 def seconds_to_iso_time(all_seconds: int) -> str:
     """Convert seconds to iso time.