diff --git a/index.php b/index.php
index eb68fcd..bfc6caa 100644
--- a/index.php
+++ b/index.php
@@ -77,7 +77,7 @@
                     strtoupper(iconv('utf-8','ASCII//IGNORE//TRANSLIT',str_replace(';', ' ', $_POST['adresse']))) . ";" .
                     str_replace(';', ' ', $_POST['codepostal']) . ";" .
                     strtoupper(iconv('utf-8','ASCII//IGNORE//TRANSLIT',str_replace(';', ' ', $_POST['ville']))) . ";" .
-                    iconv('utf-8','ASCII//IGNORE//TRANSLIT',str_replace(';', ' ', $_POST['mail'])) . ";" .
+                    iconv('utf-8','ASCII//IGNORE//TRANSLIT',str_replace(';', ' ', strtolower($_POST['mail']))) . ";" .
                     iconv('utf-8','ASCII//IGNORE//TRANSLIT',str_replace(';', ' ', $_POST['mailalec'])) . ";" .
                     str_replace(';', ' ', $_POST['xmppalec']) . ";" .
                     str_replace(';', ' ', $_POST['cotisation']) . ";" .