diff --git a/libraries/zip.lib.php b/libraries/zip.lib.php
index c6ac6e509..a8bcb98d0 100644
--- a/libraries/zip.lib.php
+++ b/libraries/zip.lib.php
@@ -96,7 +96,7 @@ class zipfile
     {
         $name     = str_replace('\\', '/', $name);
 
-        $dtime    = dechex($this->unix2DosTime($time));
+        $dtime    = substr( "00000000" . dechex($this->unix2DosTime($time)), -8);
         $hexdtime = '\x' . $dtime[6] . $dtime[7]
                   . '\x' . $dtime[4] . $dtime[5]
                   . '\x' . $dtime[2] . $dtime[3]