diff --git a/test/events/base_event_test.dart b/test/events/base_event_test.dart
index d8b648e..3e33ed7 100644
--- a/test/events/base_event_test.dart
+++ b/test/events/base_event_test.dart
@@ -171,6 +171,7 @@ void main() {
         'revenue_type': revenueType,
         'extra': extra,
         'partner_id': partnerId,
+        'attempts': 0,
       };
 
       expect(event.toMap(), equals(expectedMap));