diff --git a/test/system/users_test.rb b/test/system/users_test.rb
index d1365576538..5c488843939 100644
--- a/test/system/users_test.rb
+++ b/test/system/users_test.rb
@@ -116,6 +116,7 @@ class UsersTest < ApplicationSystemTestCase
       daimyo
       nippounashi
       with_hyphen
+      discordinvalid
     ].each do |name|
       users(name).touch # rubocop:disable Rails/SkipsModelValidations
     end