diff --git a/src/Controllers/GenerateController.php b/src/Controllers/GenerateController.php
index 652c0a7..4c7926f 100644
--- a/src/Controllers/GenerateController.php
+++ b/src/Controllers/GenerateController.php
@@ -60,7 +60,9 @@ class GenerateController
             }
 
             // Retourner le PDF
+            $filename = !empty($data['filename']) ? basename($data['filename']) : 'document.pdf';
             header('Content-Type: application/pdf');
+            header('Content-Disposition: attachment; filename="' . $filename . '"');
             header('Content-Length: ' . strlen($pdf));
             echo $pdf;