diff --git a/seminar/models/tvorba.py b/seminar/models/tvorba.py
index 452a75e7..929fd9b8 100644
--- a/seminar/models/tvorba.py
+++ b/seminar/models/tvorba.py
@@ -333,7 +333,7 @@ class Cislo(SeminarModelBase):
 
 	@property
 	def posledni_deadline(self):
-		return self.deadline_v_cisle.all().last()
+		return self.deadline_v_cisle.all().order_by("deadline").last()
 
 class Deadline(SeminarModelBase):
 	class Meta: