diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index f84e2fefacff..912f71f41f61 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -52,6 +52,8 @@ config AD7091R8
 	depends on SPI
 	select AD7091R
 	select REGMAP_SPI
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  Say yes here to build support for Analog Devices AD7091R-2, AD7091R-4,
 	  and AD7091R-8 ADC.