diff --git a/extensions/tags/extend.php b/extensions/tags/extend.php
index 42512d1f6..e4360e121 100644
--- a/extensions/tags/extend.php
+++ b/extensions/tags/extend.php
@@ -17,6 +17,7 @@ use Flarum\Discussion\Search\DiscussionSearcher;
 use Flarum\Extend;
 use Flarum\Flags\Api\Controller\ListFlagsController;
 use Flarum\Http\RequestUtil;
+use Flarum\Post\Filter\PostFilterer;
 use Flarum\Tags\Access;
 use Flarum\Tags\Api\Controller;
 use Flarum\Tags\Api\Serializer\TagSerializer;