From b0227b6c27cf651ffa8b8192ef79ab24296362e3 Mon Sep 17 00:00:00 2001
From: indexzero <charlie.robbins@gmail.com>
Date: Tue, 4 Nov 2014 13:56:54 -0500
Subject: [PATCH] [fix] Partial fix for #296. Need to properly detect
 `_isStreams2` cc/ @jcruggz.

---
 lib/winston/transports/file.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/winston/transports/file.js b/lib/winston/transports/file.js
index c916f7bd3..6a26bc8f3 100644
--- a/lib/winston/transports/file.js
+++ b/lib/winston/transports/file.js
@@ -166,6 +166,13 @@ File.prototype.log = function (level, msg, meta, callback) {
 // Write to the stream, ensure execution of a callback on completion.
 //
 File.prototype._write = function(data, callback) {
+  if (this._isStreams2) {
+    this._stream.write(data);
+    return process.nextTick(function () {
+      callback(null, true);
+    });
+  }
+
   // If this is a file write stream, we could use the builtin
   // callback functionality, however, the stream is not guaranteed
   // to be an fs.WriteStream.
@@ -295,11 +302,11 @@ File.prototype.stream = function (options) {
   };
 
   stream.destroy = common.tailFile(tail, function (err, line) {
-    
+
     if(err){
       return stream.emit('error',err);
     }
-    
+
     try {
       stream.emit('data', line);
       line = JSON.parse(line);