diff --git a/lib/block/merkleblock.js b/lib/block/merkleblock.js
index d7cccdf35..cf50423a9 100644
--- a/lib/block/merkleblock.js
+++ b/lib/block/merkleblock.js
@@ -107,7 +107,7 @@ MerkleBlock.prototype.toBufferWriter = function toBufferWriter(bw) {
     bw.write(new Buffer(this.hashes[i], 'hex'));
   }
   bw.writeVarintNum(this.flags.length);
-  for (var i = 0; i < this.flags.length; i++) {
+  for (i = 0; i < this.flags.length; i++) {
     bw.writeUInt8(this.flags[i]);
   }
   return bw;
@@ -149,7 +149,7 @@ MerkleBlock._fromBufferReader = function _fromBufferReader(br) {
   }
   var numFlags = br.readVarintNum();
   info.flags = [];
-  for (var i = 0; i < numFlags; i++) {
+  for (i = 0; i < numFlags; i++) {
     info.flags.push(br.readUInt8());
   }
   return info;
diff --git a/test/merkleblock.js b/test/merkleblock.js
index 21788e6fc..68a9a22d4 100644
--- a/test/merkleblock.js
+++ b/test/merkleblock.js
@@ -1,9 +1,7 @@
 'use strict';
 
 var bitcore = require('..'),
-    BufferUtil = bitcore.util.buffer,
     MerkleBlock = bitcore.MerkleBlock,
-    BlockHeader = bitcore.BlockHeader,
     BufferReader = bitcore.encoding.BufferReader,
     BufferWriter = bitcore.encoding.BufferWriter,
     data = require('./data/merkleblocks.js');
@@ -71,6 +69,10 @@ describe('MerkleBlock', function() {
       should.exist(block.numTransactions);
       should.exist(block.hashes);
       should.exist(block.flags);
+      should.exist(b.header);
+      should.exist(b.numTransactions);
+      should.exist(b.hashes);
+      should.exist(b.flags);
     });
 
   });