diff --git a/device/device_onu.go b/device/device_onu.go
index 1e1ee88..f2338d7 100644
--- a/device/device_onu.go
+++ b/device/device_onu.go
@@ -29,6 +29,7 @@
 	ONU_INACTIVE   DeviceState = iota	//TODO: Each stage name should be more accurate
 	ONU_ACTIVE
 	ONU_OMCIACTIVE
+	ONU_AUTHENTICATED
 	ONU_FREE
 )