diff --git a/activerecord/test/cases/adapter_test.rb b/activerecord/test/cases/adapter_test.rb
index 2bb2481fdb9da..b67e70ec7e5e7 100644
--- a/activerecord/test/cases/adapter_test.rb
+++ b/activerecord/test/cases/adapter_test.rb
@@ -92,7 +92,7 @@ def test_not_specifying_database_name_for_cross_database_selects
             )
           end
         ensure
-          ActiveRecord::Base.establish_connection 'arunit'
+          ActiveRecord::Base.establish_connection :arunit
         end
       end
     end
diff --git a/railties/test/application/rake/dbs_test.rb b/railties/test/application/rake/dbs_test.rb
index f5759d05fdf25..9a36d1ca01652 100644
--- a/railties/test/application/rake/dbs_test.rb
+++ b/railties/test/application/rake/dbs_test.rb
@@ -153,7 +153,7 @@ def db_test_load_structure
           `rails generate model book title:string;
            bundle exec rake db:migrate db:structure:dump db:test:load_structure`
           ActiveRecord::Base.configurations = Rails.application.config.database_configuration
-          ActiveRecord::Base.establish_connection 'test'
+          ActiveRecord::Base.establish_connection :test
           require "#{app_path}/app/models/book"
           #if structure is not loaded correctly, exception would be raised
           assert Book.count, 0