diff --git a/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde b/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde
index 49201d1e60..e5afa0cb49 100644
--- a/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde
+++ b/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde
@@ -39,7 +39,7 @@ AP_Compass_HMC5843 compass;
 
 GPS *g_gps;
 
-AP_GPS_Auto g_gps_driver(hal.uart1, &g_gps);
+AP_GPS_Auto g_gps_driver(hal.uartB, &g_gps);
 
 // choose which AHRS system to use
 AP_AHRS_DCM  ahrs(&ins, g_gps);