diff --git a/tournaments/models/tournament.py b/tournaments/models/tournament.py
index d8ac5a2..7126885 100644
--- a/tournaments/models/tournament.py
+++ b/tournaments/models/tournament.py
@@ -734,7 +734,7 @@ class Tournament(models.Model):
 
         # all started matches have ended, possibly
         last_finished_match = self.last_finished_match()
-        if last_finished_match:
+        if last_finished_match and last_finished_match.round:
             # print(f'last_finished_match = {last_finished_match.name}')
             round_root_index = last_finished_match.round.root_round().index
             # print(f'round_index = {round_root_index}')