diff --git a/board_games_companion/lib/pages/edit_playthrough/edit_playthrough_view_model.dart b/board_games_companion/lib/pages/edit_playthrough/edit_playthrough_view_model.dart
index e850507d..ee8bf23f 100644
--- a/board_games_companion/lib/pages/edit_playthrough/edit_playthrough_view_model.dart
+++ b/board_games_companion/lib/pages/edit_playthrough/edit_playthrough_view_model.dart
@@ -198,7 +198,7 @@ abstract class _EditPlaythoughViewModel with Store {
       return;
     }
 
-    final updatedPlaythroughNotes = _playthroughDetailsWorkingCopy!.notes!;
+    final updatedPlaythroughNotes = _playthroughDetailsWorkingCopy!.notes!.toList();
     updatedPlaythroughNotes[noteToUpdateIndex] = note;
 
     _updatePlaythroughDetailsNotes(updatedPlaythroughNotes);