diff --git a/drivers/iio/frequency/Kconfig b/drivers/iio/frequency/Kconfig
index 7b1a7ed163ce..583cbdf4e8cd 100644
--- a/drivers/iio/frequency/Kconfig
+++ b/drivers/iio/frequency/Kconfig
@@ -94,6 +94,7 @@ config ADMV1014
 config ADMV4420
 	tristate "Analog Devices ADMV4420 K Band Downconverter"
 	depends on SPI
+	select REGMAP_SPI
 	help
 	  Say yes here to build support for Analog Devices K Band
 	  Downconverter with integrated Fractional-N PLL and VCO.