diff --git a/libraries/export/sql.php b/libraries/export/sql.php
index 37c64eceb..1fe9514a6 100644
--- a/libraries/export/sql.php
+++ b/libraries/export/sql.php
@@ -229,7 +229,6 @@ function PMA_exportHeader()
     $charset_of_file = $GLOBALS['charset_of_file'];
     if (!empty($GLOBALS['asfile']) && isset($mysql_charset_map[$charset_of_file])) {
         $head .=  $crlf
-               . '/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;' . $crlf
                . '/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;' . $crlf
                . '/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;' . $crlf
                . '/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;' . $crlf