diff --git a/ArduCopter/system.pde b/ArduCopter/system.pde
index c0bea1fc92..80dacf5fcf 100644
--- a/ArduCopter/system.pde
+++ b/ArduCopter/system.pde
@@ -129,14 +129,14 @@ static void init_ardupilot()
     check_usb_mux();
 
     // init the GCS connected to the console
-    gcs[0].setup_uart(serial_manager, AP_SerialManager::SerialProtocol_Console);
+    gcs[0].setup_uart(serial_manager, AP_SerialManager::SerialProtocol_Console, 0);
 
     // init telemetry port
-    gcs[1].setup_uart(serial_manager, AP_SerialManager::SerialProtocol_MAVLink1);
+    gcs[1].setup_uart(serial_manager, AP_SerialManager::SerialProtocol_MAVLink, 0);
 
 #if MAVLINK_COMM_NUM_BUFFERS > 2
     // setup serial port for telem2
-    gcs[2].setup_uart(serial_manager, AP_SerialManager::SerialProtocol_MAVLink2);
+    gcs[2].setup_uart(serial_manager, AP_SerialManager::SerialProtocol_MAVLink, 1);
 #endif
 
 #if FRSKY_TELEM_ENABLED == ENABLED