diff --git a/source/Ox/js/Format.js b/source/Ox/js/Format.js
index 5fa8514b..b0d1f914 100644
--- a/source/Ox/js/Format.js
+++ b/source/Ox/js/Format.js
@@ -748,7 +748,7 @@ Ox.formatSRT = function(subtitles) {
         return [
             index + 1,
             ['in', 'out'].map(function(key) {
-                return Ox.formatDuration(subtitle[key]).replace('.', ',');
+                return Ox.formatDuration(subtitle[key], 3).replace('.', ',');
             }).join(' --> '),
             subtitle['text']
         ].join('\n')