diff --git a/createVhosts.sh b/createVhosts.sh
index e608538..7c39964 100755
--- a/createVhosts.sh
+++ b/createVhosts.sh
@@ -23,6 +23,8 @@ function usage
     echo "        Do not redirect HTTP to HTTPS"
     echo "    --servicename"
     echo "        The Nginx server service name to use to reload"
+    echo "    --confpath"
+    echo "        The location of Nginx conf directory"
     echo "    --standalone"
     echo "        Instead of webroot, use acme.sh builtin server"
     echo "    --bindaddress"