diff --git a/laser-cnc/lasercnc.cfg b/laser-cnc/lasercnc.cfg
index ba846d7..ea68ee9 100644
--- a/laser-cnc/lasercnc.cfg
+++ b/laser-cnc/lasercnc.cfg
@@ -78,6 +78,9 @@ pin: PC6
 [mcu]
 serial: /dev/serial/by-id/usb-Klipper_Klipper_firmware_12345-if00
 
+[mcu host]
+serial: /tmp/klipper_host_mcu
+
 [printer]
 kinematics: cartesian
 max_velocity: 300