diff --git a/extend/fast/Form.php b/extend/fast/Form.php
index b2dc44954016045f9985ce8e2440aa34edb48586..52828b0b7b723a07c1543296f6f3ea1809e7ec2c 100644
--- a/extend/fast/Form.php
+++ b/extend/fast/Form.php
@@ -1015,7 +1015,7 @@ EOD;
         $uploadBtn = $upload ? $this->button('<i class="fa fa-upload"></i> ' . __('Upload'), array_merge($options, $uploadAttr)) : '';
         $options = [
             'id'            => "fachoose-{$domname}",
-            'class'         => "btn btn-danger fachoose",
+            'class'         => "btn btn-primary fachoose",
             'data-input-id' => "c-{$domname}",
         ];
         if ($preview) {