diff --git a/index.es6 b/index.es6
index 97013c9..fe3853f 100644
--- a/index.es6
+++ b/index.es6
@@ -4,11 +4,13 @@ import pumpify from 'pumpify';
 
 module.exports = function() {
 
+  let count = 0;
+
   const write = (line, enc, cb) => {
 
       if(!line.trim()) return cb();
 
-      const vttLine = line
+      let vttLine = line
       .replace(/(WEBVTT\s*(FILE)?.*)(\r\n)*/g, '')
       .replace(/(\d{2}:\d{2}:\d{2})\.(\d{3}\s+)\-\-\>(\s+\d{2}:\d{2}:\d{2})\.(\d{3}\s*)/g, '$1,$2-->$3,$4')
       .replace(/\<.+\>(.+)/g, '$1')
@@ -16,6 +18,18 @@ module.exports = function() {
 
       if(!vttLine.trim()) return cb();
 
+      if (/^Kind:|^Language:/m.test(vttLine)) {
+        return cb();
+      }
+
+      if (/^[0-9]+:/m.test(vttLine)) {
+        if (count === 0) {
+          vttLine = `${++count}\r\n${vttLine}`;
+        } else {
+          vttLine = `\r\n${++count}\r\n${vttLine}`;
+        }
+      }
+
       cb(null, vttLine);
     
   };
diff --git a/index.js b/index.js
index 0caaf4f..94829a0 100644
--- a/index.js
+++ b/index.js
@@ -16,6 +16,8 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { de
 
 module.exports = function () {
 
+  var count = 0;
+
   var write = function write(line, enc, cb) {
 
     if (!line.trim()) return cb();
@@ -24,6 +26,18 @@ module.exports = function () {
 
     if (!vttLine.trim()) return cb();
 
+    if (/^Kind:|^Language:/m.test(vttLine)) {
+      return cb();
+    }
+
+    if (/^[0-9]+:/m.test(vttLine)) {
+      if (count === 0) {
+        vttLine = ++count + '\r\n' + vttLine;
+      } else {
+        vttLine = '\r\n' + ++count + '\r\n' + vttLine;
+      }
+    }
+
     cb(null, vttLine);
   };
 
diff --git a/package.json b/package.json
index 9f1c3a8..8ce0990 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "through2": "^0.6.3"
   },
   "devDependencies": {
+    "babel-cli": "^6.26.0",
     "babel-core": "^6.9.1",
     "babel-preset-es2015": "^6.9.0",
     "concat-stream": "^1.4.10",
diff --git a/test.js b/test.js
index b7fe7cd..858f412 100644
--- a/test.js
+++ b/test.js
@@ -24,7 +24,7 @@ tape('one entry', function(t) {
 
   var convert = vtt2srt();
 
-  convert.write('WEBVTT FILE\r\n\r\n1\r\n00:00:10.500 --> 00:00:13.000\r\nthis is a test\r\n\r\n');
+  convert.write('WEBVTT FILE\r\n\r\n00:00:10.500 --> 00:00:13.000\r\nthis is a test\r\n\r\n');
 
   convert.end();
 
@@ -42,13 +42,13 @@ tape('two entries', function(t) {
 
   var convert = vtt2srt();
 
-  convert.write('WEBVTT FILE\r\n\r\n1\r\n00:00:10.500 --> 00:00:13.000\r\nthis is a test\r\n\r\n2\r\n00:00:14.500 --> 00:00:15.000\r\nthis is a test\r\n\r\n');
+  convert.write('WEBVTT FILE\r\n\r\n00:00:10.500 --> 00:00:13.000\r\nthis is a test\r\n00:00:14.500 --> 00:00:15.000\r\nthis is a test\r\n\r\n');
 
   convert.end();
 
   convert.pipe(concat(function(data) {
 
-    t.same(data.toString(), '1\r\n00:00:10,500 --> 00:00:13,000\r\nthis is a test\r\n2\r\n00:00:14,500 --> 00:00:15,000\r\nthis is a test\r\n');
+    t.same(data.toString(), '1\r\n00:00:10,500 --> 00:00:13,000\r\nthis is a test\r\n\r\n2\r\n00:00:14,500 --> 00:00:15,000\r\nthis is a test\r\n');
 
     t.end();