diff --git a/lib/models/list.dart b/lib/models/list.dart
index 1721a1e..6801e85 100644
--- a/lib/models/list.dart
+++ b/lib/models/list.dart
@@ -21,7 +21,7 @@ class TaskList {
 
   TaskList.fromJson(Map<String, dynamic> json, {tasksJson})
       : id = json['id'],
-        owner = User.fromJson(json['owner']),
+        owner = json['owner'] == null ? null : User.fromJson(json['owner']),
         description = json['description'],
         title = json['title'],
         updated = DateTime.parse(json['updated']),