diff --git a/PadelClub/Data/Tournament.swift b/PadelClub/Data/Tournament.swift
index f4e2347..7daa905 100644
--- a/PadelClub/Data/Tournament.swift
+++ b/PadelClub/Data/Tournament.swift
@@ -417,7 +417,7 @@ final class Tournament : ModelObject, Storable {
         }
         store.groupStages.deleteDependencies(groups)
         
-        let rounds = self.tournamentStore.rounds
+        let rounds = Array(self.tournamentStore.rounds)
         for round in rounds {
             try round.deleteDependencies()
         }