diff --git a/bsp/nrf5x/libraries/drivers/drv_adc.c b/bsp/nrf5x/libraries/drivers/drv_adc.c
index 1f02fdddd6..8b136a3598 100644
--- a/bsp/nrf5x/libraries/drivers/drv_adc.c
+++ b/bsp/nrf5x/libraries/drivers/drv_adc.c
@@ -12,8 +12,6 @@
 
 #ifdef RT_USING_ADC
 
-#define ADC_NAME "adc"
-
 struct rt_adc_device nrf5x_adc_device;
 
 drv_nrfx_saadc_result_t results;
diff --git a/bsp/nrf5x/libraries/drivers/drv_adc.h b/bsp/nrf5x/libraries/drivers/drv_adc.h
index 908ac87489..b65a981982 100644
--- a/bsp/nrf5x/libraries/drivers/drv_adc.h
+++ b/bsp/nrf5x/libraries/drivers/drv_adc.h
@@ -16,6 +16,8 @@
 #include <hal/nrf_saadc.h>
 #include <drivers/include/nrfx_saadc.h>
 
+#define ADC_NAME "adc"
+
 /* 
     previous definition in application