diff --git a/src/RedirectorRoutes.php b/src/RedirectorRoutes.php
index edaecab..fc20125 100644
--- a/src/RedirectorRoutes.php
+++ b/src/RedirectorRoutes.php
@@ -20,8 +20,7 @@ final class RedirectorRoutes {
         $router->get('/[up]/([A-Za-z0-9\-_]+)', $this->redirectProfile(...));
 
         // forum categories
-        $router->get('/f/?([0-9]+)', $this->redirectForumCategory(...));
-        $router->get('/fc/?([0-9]+)', $this->redirectForumCategory(...));
+        $router->get('/fc?/?([0-9]+)', $this->redirectForumCategory(...));
 
         // forum topic
         $router->get('/ft/?([0-9]+)', $this->redirectForumTopic(...));