diff --git a/test/integration/api_test/users_test.rb b/test/integration/api_test/users_test.rb
index 9549e4308..a51c14b0e 100644
--- a/test/integration/api_test/users_test.rb
+++ b/test/integration/api_test/users_test.rb
@@ -20,7 +20,7 @@
 require_relative '../../test_helper'
 
 class Redmine::ApiTest::UsersTest < Redmine::ApiTest::Base
-  fixtures :users, :email_addresses, :members, :member_roles, :roles, :projects
+  fixtures :users, :groups_users, :email_addresses, :members, :member_roles, :roles, :projects
 
   test "GET /users.xml should return users" do
     users = User.active.order('login')