diff --git a/lib/features/email/domain/state/download_attachment_for_web_state.dart b/lib/features/email/domain/state/download_attachment_for_web_state.dart
index 616173d2b..72082f057 100644
--- a/lib/features/email/domain/state/download_attachment_for_web_state.dart
+++ b/lib/features/email/domain/state/download_attachment_for_web_state.dart
@@ -5,6 +5,8 @@ import 'package:jmap_dart_client/jmap/core/id.dart';
 import 'package:model/download/download_task_id.dart';
 import 'package:model/email/attachment.dart';
 
+class IdleDownloadAttachmentForWeb extends UIState {}
+
 class StartDownloadAttachmentForWeb extends UIState {
 
   final DownloadTaskId taskId;
diff --git a/lib/features/email/domain/state/view_attachment_for_web_state.dart b/lib/features/email/domain/state/view_attachment_for_web_state.dart
index bb2477415..d1e812465 100644
--- a/lib/features/email/domain/state/view_attachment_for_web_state.dart
+++ b/lib/features/email/domain/state/view_attachment_for_web_state.dart
@@ -1,5 +1,7 @@
 import 'package:tmail_ui_user/features/email/domain/state/download_attachment_for_web_state.dart';
 
+class IdleViewAttachmentForWeb extends IdleDownloadAttachmentForWeb {}
+
 class StartViewAttachmentForWeb extends StartDownloadAttachmentForWeb {
   StartViewAttachmentForWeb(super.taskId, super.attachment);
 }