--- a/sites/all/modules/contrib/views_data_export/plugins/views_data_export_plugin_style_export.inc
+++ b/sites/all/modules/contrib/views_data_export/plugins/views_data_export_plugin_style_export.inc
@@ -165,6 +165,9 @@ class views_data_export_plugin_style_export extends views_plugin_style {
     if ($this->options['parent_sort']) {
       $query['attach'] = $display_id;
     }
+
+    isset($this->view->feed_icon) or $this->view->feed_icon = '';
+
     $this->view->feed_icon .= theme($theme_pattern, array(
         'image_path' => $this->definition['export feed icon'],
         'url' => $this->view->get_url(NULL, $path),