diff --git a/tournaments/models/tournament.py b/tournaments/models/tournament.py
index e3e93fb..90c5244 100644
--- a/tournaments/models/tournament.py
+++ b/tournaments/models/tournament.py
@@ -437,6 +437,8 @@ class Tournament(models.Model):
         return groups
 
     def group_stage_match_group(self, group_stage, broadcasted, hide_empty_matches):
+        if group_stage is None:
+            return None
         matches = group_stage.match_set.all()
         if hide_empty_matches:
             matches = [m for m in matches if m.should_appear()]