diff --git a/certbot-postfix/certbot_postfix/installer.py b/certbot-postfix/certbot_postfix/installer.py
index 366824f07..3c4a4a85b 100644
--- a/certbot-postfix/certbot_postfix/installer.py
+++ b/certbot-postfix/certbot_postfix/installer.py
@@ -28,9 +28,11 @@ class Installer(plugins_common.Installer):
 
     @classmethod
     def add_parser_arguments(cls, add):
+        add("ctl", default="postfix",
+            help="Path to the 'postfix' control program.")
         add("config-dir", help="Path to the directory containing the "
             "Postfix main.cf file to modify instead of using the "
-            "default configuration paths")
+            "default configuration paths.")
         add("config-utility", default="postconf",
             help="Path to the 'postconf' executable.")
 
diff --git a/certbot-postfix/certbot_postfix/installer_test.py b/certbot-postfix/certbot_postfix/installer_test.py
index 547a954e2..a761a4386 100644
--- a/certbot-postfix/certbot_postfix/installer_test.py
+++ b/certbot-postfix/certbot_postfix/installer_test.py
@@ -32,13 +32,14 @@ class InstallerTest(certbot_test_util.ConfigTestCase):
         self.config.postfix_config_utility = "postconf"
 
     def test_add_parser_arguments(self):
+        options = set(('ctl', 'config-dir', 'config-utility',))
         mock_add = mock.MagicMock()
 
         from certbot_postfix import installer
         installer.Installer.add_parser_arguments(mock_add)
 
         for call in mock_add.call_args_list:
-            self.assertTrue(call[0][0] in ('config-dir', 'config-utility'))
+            self.assertTrue(call[0][0] in options)
 
     def test_no_postconf_prepare(self):
         installer = self._create_installer()