diff --git a/test/data_item_test.dart b/test/data_item_test.dart
index 632f2fa..406683a 100644
--- a/test/data_item_test.dart
+++ b/test/data_item_test.dart
@@ -6,8 +6,8 @@ import 'package:arweave/arweave.dart';
 import 'package:arweave/src/streams/data_item.dart';
 import 'package:arweave/utils.dart';
 import 'package:test/test.dart';
-import 'deserialize_tags.dart';
 import 'fixtures/test_wallet.dart';
+import 'deserialize_tags.dart' if (dart.library.js) 'deserialize_tags.dart';
 
 void main() async {
   final wallet = getTestWallet();
diff --git a/test/deserialize_tags_io.dart b/test/deserialize_tags_io.dart
new file mode 100644
index 0000000..525ac64
--- /dev/null
+++ b/test/deserialize_tags_io.dart
@@ -0,0 +1,5 @@
+import 'package:arweave/src/models/tag.dart';
+
+List<Tag> deserializeTags({var buffer}) {
+  return [];
+}