diff --git a/bitcore.js b/bitcore.js
index 79e8ffb..568f023 100644
--- a/bitcore.js
+++ b/bitcore.js
@@ -12,6 +12,7 @@ var requireWhenAccessed = function(name, file) {
 
 requireWhenAccessed('bignum', 'bignum');
 requireWhenAccessed('base58', 'base58-native');
+requireWhenAccessed('bufferput', 'bufferput');
 requireWhenAccessed('buffertools', 'buffertools');
 requireWhenAccessed('config', './config');
 requireWhenAccessed('const', './const');
diff --git a/browser/build.js b/browser/build.js
index 736ae3d..f3816e5 100644
--- a/browser/build.js
+++ b/browser/build.js
@@ -89,6 +89,9 @@ var createBitcore = function(opts) {
   b.require(opts.dir + 'browserify-buffertools/buffertools.js', {
     expose: 'buffertools'
   });
+  b.require(opts.dir + 'bufferput', {
+    expose: 'bufferput'
+  });
   b.require(opts.dir + 'base58-native', {
     expose: 'base58-native'
   });
diff --git a/test/index.html b/test/index.html
index bbd0d61..5351712 100644
--- a/test/index.html
+++ b/test/index.html
@@ -31,6 +31,7 @@
     <script src="test.RpcClient.js"></script>
     <script src="test.Script.js"></script>
     <script src="test.ScriptInterpreter.js"></script>
+    <script src="test.sighash.js"></script>
     <script src="test.SIN.js"></script>
     <script src="test.SINKey.js"></script>
     <script src="test.Transaction.js"></script>