diff --git a/lib/bufferwriter.js b/lib/bufferwriter.js
index 7c410f5..85a18fe 100644
--- a/lib/bufferwriter.js
+++ b/lib/bufferwriter.js
@@ -99,7 +99,7 @@ BufferWriter.varIntBuf = function(n) {
 
 BufferWriter.varIntBufBN = function(bn) {
   var buf = undefined;
-    var n = bn.toNumber();
+  var n = bn.toNumber();
   if (n < 253) {
     buf = new Buffer(1);
     buf.writeUInt8(n, 0);