diff --git a/activerecord/test/cases/associations/has_one_associations_test.rb b/activerecord/test/cases/associations/has_one_associations_test.rb
index 2eb6cef1d9f37444f487e381c1c034ed5339c15b..fdb98d84e09692cd5b2bc56942872b0f918f03ef 100644
--- a/activerecord/test/cases/associations/has_one_associations_test.rb
+++ b/activerecord/test/cases/associations/has_one_associations_test.rb
@@ -15,7 +15,7 @@
 
 class HasOneAssociationsTest < ActiveRecord::TestCase
   self.use_transactional_tests = false unless supports_savepoints?
-  fixtures :accounts, :companies, :developers, :projects, :developers_projects, :ships, :pirates
+  fixtures :accounts, :companies, :developers, :projects, :developers_projects, :ships, :pirates, :authors
 
   def setup
     Account.destroyed_account_ids.clear