diff --git a/index.php b/index.php
index 06a45a9..0eca332 100644
--- a/index.php
+++ b/index.php
@@ -80,7 +80,7 @@
                     str_replace(';', ' ', $_POST['cotisation']) .
                     str_replace(';', ' ', $_POST['mode']);
         
-        file_put_contents($filepath . "preadhesion" . date("Y-m-d") . rand(111111, 999999), $content);
+        file_put_contents($filepath . "preadhesion" . date("Y-m-d") . rand(111111, 999999), strtoupper($content));
         
     } else {