diff --git a/lib/read-stream.js b/lib/read-stream.js
index 003da5da..b8241d7b 100644
--- a/lib/read-stream.js
+++ b/lib/read-stream.js
@@ -13,10 +13,11 @@ var Readable      = require('readable-stream').Readable
 
   , defaultOptions = { keys: true, values: true }
 
-  , makeKeyValueData = function (key, value) {
+  , makeKeyValueData = function (key, value, extra) {
       return {
           key: util.decodeKey(key, this._options)
         , value: util.decodeValue(value, this._options)
+        , extra: extra
       }
     }
   , makeKeyData = function (key) {
@@ -78,7 +79,7 @@ ReadStream.prototype._read = function read () {
   if (self._destroyed)
     return
  
-  self._iterator.next(function(err, key, value) {
+  self._iterator.next(function(err, key, value, extra) {
     if (err || (key === undefined && value === undefined)) {
       if (!err && !self._destroyed)
         self.push(null)
@@ -86,7 +87,7 @@ ReadStream.prototype._read = function read () {
     }
 
     try {
-      value = self._makeData(key, value)
+      value = self._makeData(key, value, extra)
     } catch (e) {
       return self._cleanup(new EncodingError(e))
     }