diff --git a/lib/index.js b/lib/index.js
index 2bbaf51..2b12414 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -84,7 +84,9 @@ var toVTT = function (utf8str) { return utf8str
     .replace(/\{([ibu])\}/g, '<$1>')
     .replace(/\{\/([ibu])\}/g, '</$1>')
     .replace(/(\d\d:\d\d:\d\d),(\d\d\d)/g, '$1.$2')
-    .replace(/\r?\n\{\\an(\d)\}/, function (_, pos) { return srtPositionToLine(pos) + '\r\n'; })
+    .replace(/\r?\n\{\\an(\d)\}/g, function (_, pos) { return srtPositionToLine(pos) + '\r\n'; })
+    // force line:93% by default
+    .replace(/(\d\d:\d\d:\d\d.\d\d\d)\r?\n/g, '$1 line:93%\r\n')
     .concat('\r\n\r\n'); };
 var srtPositionToLine = function (pos) {
     var _a;