diff --git a/green/test/test_config.py b/green/test/test_config.py
index 53dc0a8..e1c5a05 100644
--- a/green/test/test_config.py
+++ b/green/test/test_config.py
@@ -611,7 +611,7 @@ def test_cmd_noenv_nodef_nosetup_pyproject(self):
             self.assertEqual(
                 self.cmd_run_coverage, cfg.getboolean("green", "run-coverage")
             )
-            self.assertEqual(self.pyproject_filename, cfg.getboolean("green", "failfast"))
+            self.assertEqual(self.pyproject_failfast, cfg.getboolean("green", "failfast"))
             self.assertEqual(self.pyproject_verbose, cfg.getint("green", "verbose"))
             self.assertRaises(
                 configparser.NoOptionError, cfg.get, "green", "no-skip-report"