diff --git a/app/controllers/robots_txt_controller.rb b/app/controllers/robots_txt_controller.rb
index 1f07d51ef1a..ad9b8e5e8c2 100644
--- a/app/controllers/robots_txt_controller.rb
+++ b/app/controllers/robots_txt_controller.rb
@@ -20,7 +20,7 @@ class RobotsTxtController < ApplicationController
 
   DISALLOWED_WITH_HEADER_PATHS ||= %w{
     /badges
-    /u
+    /u/
     /my
     /search
     /tag/*/l