diff --git a/mobile/lib/ui/viewer/file/file_details_widget.dart b/mobile/lib/ui/viewer/file/file_details_widget.dart
index af15de5f19..810f5a075d 100644
--- a/mobile/lib/ui/viewer/file/file_details_widget.dart
+++ b/mobile/lib/ui/viewer/file/file_details_widget.dart
@@ -1,3 +1,4 @@
+import "dart:async";
 import "dart:io";
 
 import "package:exif/exif.dart";