diff --git a/letsencrypt-auto-source/letsencrypt-auto b/letsencrypt-auto-source/letsencrypt-auto
index 3d2f5df59..36e4bd16f 100755
--- a/letsencrypt-auto-source/letsencrypt-auto
+++ b/letsencrypt-auto-source/letsencrypt-auto
@@ -127,7 +127,7 @@ fi
 # necessary privileges by using `sudo` or falling back to `su` if it is not
 # available. The mechanism used to obtain root access can set explicitly by the
 # user by overriding the environment variable LE_AUTO_SUDO to 'sudo',
-# 'sudo_su', or '' as used below.
+# 'su_sudo', or '' as used below.
 
 # These variables must be preserved if this script tries to run itself as root.
 PRESERVE_VARS="LE_AUTO_DIR_TEMPLATE LE_AUTO_JSON_URL LE_AUTO_PUBLIC_KEY "
diff --git a/letsencrypt-auto-source/letsencrypt-auto.template b/letsencrypt-auto-source/letsencrypt-auto.template
index 500275b62..c06776ba1 100755
--- a/letsencrypt-auto-source/letsencrypt-auto.template
+++ b/letsencrypt-auto-source/letsencrypt-auto.template
@@ -127,7 +127,7 @@ fi
 # necessary privileges by using `sudo` or falling back to `su` if it is not
 # available. The mechanism used to obtain root access can set explicitly by the
 # user by overriding the environment variable LE_AUTO_SUDO to 'sudo',
-# 'sudo_su', or '' as used below.
+# 'su_sudo', or '' as used below.
 
 # These variables must be preserved if this script tries to run itself as root.
 PRESERVE_VARS="LE_AUTO_DIR_TEMPLATE LE_AUTO_JSON_URL LE_AUTO_PUBLIC_KEY "