diff --git a/lib/parser/javascript.js b/lib/parser/javascript.js
index dd70cf0987..9acfa1f188 100644
--- a/lib/parser/javascript.js
+++ b/lib/parser/javascript.js
@@ -125,12 +125,12 @@ ReplyParser.prototype._parseResult = function (type) {
         for (i = 0; i < packetHeader.size; i++) {
             ntype = this._buffer[this._offset++];
 
-            if (this._offset === this._buffer.length) {
+            if (this._offset > this._buffer.length) {
                 throw new Error("too far");
             }
             res = this._parseResult(ntype);
             if (res === undefined) {
-              res = null;
+                res = null;
             }
             reply.push(res);
         }