diff --git a/b_asic/schedule.py b/b_asic/schedule.py
index 73659fe6b2241a3ec8a9a6190301d7a44bd18112..eb3528a72f3d416d369a005b73d4c7ba3d92d05f 100644
--- a/b_asic/schedule.py
+++ b/b_asic/schedule.py
@@ -126,7 +126,7 @@ class Schedule:
         raise NotImplementedError
 
     def set_schedule_time(self, time: int) -> "Schedule":
-        assert self._get_max_end_time() < time, "New schedule time to short."
+        assert self._get_max_end_time() <= time, "New schedule time to short."
         self._schedule_time = time
         return self