diff --git a/config.template b/config.template
index 81800ce..b3b5efa 100644
--- a/config.template
+++ b/config.template
@@ -6,6 +6,7 @@
 
 [interface]
 type = serial
+port = /dev/ttyACM0
 # port = /dev/ttyUSB0
 # hostname = 192.168.0.1
 # mac = 00:11:22:33:44:55