diff --git a/apps/school/models.py b/apps/school/models.py
index 29ed8795..84bc4b7a 100644
--- a/apps/school/models.py
+++ b/apps/school/models.py
@@ -76,7 +76,7 @@ class SchoolSchedule(models.Model):
     def online_coming_soon(self):
         now_time = now()
         return (
-            school_schedule.start_at > now_time.time() and
+            self.start_at > now_time.time() and
             (
                 datetime.combine(datetime.today(), self.start_at) - timedelta(hours=12)
             ).time() <= now_time.time() and