diff --git a/source/_components/device_tracker.asuswrt.markdown b/source/_components/device_tracker.asuswrt.markdown
index 27f5281ea75..a49a0663097 100644
--- a/source/_components/device_tracker.asuswrt.markdown
+++ b/source/_components/device_tracker.asuswrt.markdown
@@ -35,6 +35,7 @@ Configuration variables:
 - **username** (*Required*: The username of an user with administrative privileges, usually `admin`.
 - **password** (*Optional*): The password for your given admin account (use this if no SSH key is given).
 - **protocol** (*Optional*): The protocol (`ssh` or `telnet`) to use. Defaults to `ssh`.
+- **port** (*Optional*): SSH port to use. Defaults to `22`.
 - **mode** (*Optional*): The operating mode of the router (`router` or `ap`). Defaults to `router`.
 - **ssh_key** (*Optional*): The path to your SSH private key file associated with your given admin account (instead of password).