diff --git a/lib/Parser.js b/lib/Parser.js
index ae4f8f4..ce0cf7d 100644
--- a/lib/Parser.js
+++ b/lib/Parser.js
@@ -97,7 +97,7 @@ Parser.prototype._parse = function(data) {
   while (i < datalen) {
     idxlf = indexOfCh(data, datalen, i, CH_LF);
     if (idxlf === -1) {
-      this._buffer += data.toString('utf8');
+      this._buffer += data.toString('utf8', i);
       break;
     } else {
       this._buffer += data.toString('utf8', i, idxlf);