diff --git a/README.md b/README.md
index 8c1ba40b3..702a989cd 100644
--- a/README.md
+++ b/README.md
@@ -625,6 +625,7 @@ The File transport should really be the 'Stream' transport since it will accept
 * __maxFiles:__ Limit the number of files created when the size of the logfile is exceeded.
 * __stream:__ The WriteableStream to write output to.
 * __json:__ If true, messages will be logged as JSON (default true).
+* __logstash:__ If true, messages will be logged using the logstash JSON format.
 
 *Metadata:* Logged via util.inspect(meta);
 
diff --git a/lib/winston/transports/file.js b/lib/winston/transports/file.js
index 96a38ca9f..40e5ecd9f 100644
--- a/lib/winston/transports/file.js
+++ b/lib/winston/transports/file.js
@@ -72,6 +72,7 @@ var File = exports.File = function (options) {
   this.prettyPrint = options.prettyPrint || false;
   this.label       = options.label       || null;
   this.timestamp   = options.timestamp != null ? options.timestamp : true;
+  this.logstash    = options.logstash    || false;
 
   if (this.json) {
     this.stringify = options.stringify;
@@ -126,7 +127,8 @@ File.prototype.log = function (level, msg, meta, callback) {
     prettyPrint: this.prettyPrint,
     timestamp:   this.timestamp,
     stringify:   this.stringify,
-    label:       this.label
+    label:       this.label,
+    logstash:    this.logstash
   }) + '\n';
 
   this._size += output.length;