diff --git a/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde b/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde
index 48b68fc354..6839dd9138 100644
--- a/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde
+++ b/libraries/AP_AHRS/examples/AHRS_Test/AHRS_Test.pde
@@ -47,7 +47,7 @@ const AP_HAL::HAL& hal = AP_HAL_BOARD_DRIVER;
 AP_InertialSensor ins;
 
 #if CONFIG_HAL_BOARD == HAL_BOARD_APM1
-AP_ADC_ADS7844 adc;
+AP_ADC_ADS7844 apm1_adc;
 #endif
 
 AP_Compass_HMC5843 compass;