diff --git a/custom_components/webuntis/__init__.py b/custom_components/webuntis/__init__.py
index a500c56..101ca92 100644
--- a/custom_components/webuntis/__init__.py
+++ b/custom_components/webuntis/__init__.py
@@ -233,7 +233,6 @@ def _next_class(self):
         table = self.session.timetable(start=today, end=in_x_days, **timetable_object)
 
         now = datetime.now()
-        last_time = None
 
         time_list = []
         for lesson in table: