diff --git a/test/index.html b/test/index.html
index 5351712..24b2931 100644
--- a/test/index.html
+++ b/test/index.html
@@ -35,6 +35,7 @@
     <script src="test.SIN.js"></script>
     <script src="test.SINKey.js"></script>
     <script src="test.Transaction.js"></script>
+    <script src="test.TransactionBuilder.js"></script>
     <script src="test.util.js"></script>
     <script src="test.VersionedData.js"></script>
     <script src="test.Wallet.js"></script>