diff --git a/arch/arm/src/nrf52/nrf52_adc.c b/arch/arm/src/nrf52/nrf52_adc.c
index 344bdb69b9..451976f760 100644
--- a/arch/arm/src/nrf52/nrf52_adc.c
+++ b/arch/arm/src/nrf52/nrf52_adc.c
@@ -809,7 +809,7 @@ static void nrf52_adc_shutdown(struct adc_dev_s *dev)
 
   /* Stop SAADC */
 
-  nrf52_adc_putreg(priv, NRF52_SAADC_TASKS_STOP_OFFSET, 0);
+  nrf52_adc_putreg(priv, NRF52_SAADC_TASKS_STOP_OFFSET, 1);
 
   /* Wait for SAADC stopped */