diff --git a/test/test_process_test.dart b/test/test_process_test.dart
index 1b586cc..20dcc87 100644
--- a/test/test_process_test.dart
+++ b/test/test_process_test.dart
@@ -2,7 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-import 'dart:async';
 import 'dart:io';
 
 import 'package:path/path.dart' as p;