diff --git a/html/ajax_form.php b/html/ajax_form.php
index 3851d5b4f2..999a43a4dc 100644
--- a/html/ajax_form.php
+++ b/html/ajax_form.php
@@ -29,7 +29,6 @@ if (!$_SESSION['authenticated']) {
 
 if (preg_match('/^[a-zA-Z0-9\-]+$/', $_POST['type']) == 1) {
     if (file_exists('includes/forms/'.$_POST['type'].'.inc.php')) {
-        header('Content-type: application/json');
         include_once 'includes/forms/'.$_POST['type'].'.inc.php';
     }
 }