diff --git a/letsencrypt/tests/cli_test.py b/letsencrypt/tests/cli_test.py
index 2f729f71d..24c2e9097 100644
--- a/letsencrypt/tests/cli_test.py
+++ b/letsencrypt/tests/cli_test.py
@@ -139,7 +139,9 @@ class CLITest(unittest.TestCase):  # pylint: disable=too-many-public-methods
                     '--key-path', 'key', '--chain-path', 'chain'])
         self.assertEqual(mock_display_ops.pick_installer.call_count, 1)
 
-    def test_configurator_selection(self):
+    @mock.patch('letsencrypt.le_util.exe_exists')
+    def test_configurator_selection(self, mock_exe_exists):
+        mock_exe_exists.return_value = True
         real_plugins = disco.PluginsRegistry.find_all()
         args = ['--agree-dev-preview', '--apache',
                 '--authenticator', 'standalone']