diff --git a/browser/build.js b/browser/build.js
index bcfc83839..101efb1e8 100644
--- a/browser/build.js
+++ b/browser/build.js
@@ -144,5 +144,7 @@ if (require.main === module) {
 
   testBundle.pipe(fs.createWriteStream('browser/testdata.js'));
   bitcoreBundle.pipe(fs.createWriteStream('browser/bundle.js'));
-
 }
+
+module.exports.createBitcore = createBitcore;
+module.exports.createTestData = createTestData;