diff --git a/modules/gallery/helpers/movie.php b/modules/gallery/helpers/movie.php
index 4613df61..e7842676 100644
--- a/modules/gallery/helpers/movie.php
+++ b/modules/gallery/helpers/movie.php
@@ -268,7 +268,7 @@ class movie_Core {
    * features (the last argument of mkdate above, which disables DST, is deprecated as of PHP 5.3).
    */
   static function seconds_to_hhmmssdd($seconds) {
-    return sprintf("%02d:%02d:%05.2f", floor($seconds / 3600), floor(($seconds % 3600) / 60),
+    return sprintf("%02d:%02d:%05.2F", floor($seconds / 3600), floor(($seconds % 3600) / 60),
                    floor(100 * $seconds % 6000) / 100);
   }