diff --git a/include/class.export.php b/include/class.export.php
index 1743d3f72d8a999b454c6efa536b44de33d0b6d2..5f2d729e2c373906ed6a6e90fba2a5903393f945 100644
--- a/include/class.export.php
+++ b/include/class.export.php
@@ -276,6 +276,7 @@ class CsvResultsExporter extends ResultSetExporter {
         if (!$this->output)
              $this->output = fopen('php://output', 'w');
 
+        fputs($this->output, chr(0xEF) . chr(0xBB) . chr(0xBF));
         fputcsv($this->output, $this->getHeaders());
         while ($row=$this->next())
             fputcsv($this->output, $row);