--- swfupload.module
+++ swfupload.module
@@ -226,9 +226,9 @@ function swfupload_add_js($element) {
     $field['widget']['list_field'] = $field['list_field'];
     $field['widget']['list_default'] = $field['list_default'];
     $field['widget']['description_field'] = $field['description_field'];
-  
+
     $limit = ($field['multiple'] == 1 ? 0 : ($field['multiple'] == 0 ? 1 : $field['multiple']));
-  
+
     $settings['swfupload_settings'][$element['#id']] = array(
       'module_path' => $path,
       'flash_url' => base_path() . str_replace('.js', '.swf', array_shift($swfupload_library->scripts['2.2.0.1'])),
@@ -252,7 +252,7 @@ function swfupload_add_js($element) {
         'max_queue_size' => ($field['widget']['max_filesize_per_node'] ? $field['widget']['max_filesize_per_node'] : 0),
       ),
     );
-    drupal_add_js('misc/tabledrag.js');
+    drupal_add_js('misc/tabledrag.js','core');
     drupal_add_js("$path/js/swfupload_widget.js");
     drupal_add_js($settings, 'setting');
   }