diff --git a/src/Admin/CommentsGridField.php b/src/Admin/CommentsGridField.php
index cde1eed..7c99074 100644
--- a/src/Admin/CommentsGridField.php
+++ b/src/Admin/CommentsGridField.php
@@ -3,10 +3,25 @@
 namespace SilverStripe\Comments\Admin;
 
 use SilverStripe\Forms\GridField\GridField;
+use SilverStripe\Forms\GridField\GridFieldConfig;
+use SilverStripe\ORM\SS_List;
 use SilverStripe\View\HTML;
 
 class CommentsGridField extends GridField
 {
+    /**
+     * @param string $name
+     * @param string $title
+     * @param SS_List $dataList
+     * @param GridFieldConfig $config
+     */
+    public function __construct($name, $title = null, SS_List $dataList = null, GridFieldConfig $config = null)
+    {
+        parent::__construct($name, $title, $dataList, $config);
+
+        $this->addExtraClass('grid-field__filter-buttons');
+    }
+
     /**
      * {@inheritdoc}
      */