diff --git a/certbot-apache/certbot_apache/constants.py b/certbot-apache/certbot_apache/constants.py
index d4ec2d8a8..5e296ba0a 100644
--- a/certbot-apache/certbot_apache/constants.py
+++ b/certbot-apache/certbot_apache/constants.py
@@ -10,8 +10,8 @@ CLI_DEFAULTS_DEFAULT = dict(
     define_cmd=['apache2ctl', '-t', '-D', 'DUMP_RUN_CFG'],
     restart_cmd=['apache2ctl', 'graceful'],
     conftest_cmd=['apache2ctl', 'configtest'],
-    enmod="a2enmod",
-    dismod="a2dismod",
+    enmod=None,
+    dismod=None,
     le_vhost_ext="-le-ssl.conf",
     handle_mods=False,
     handle_sites=False,