diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 9f8b4b1d655b9cf61b7831b7c8ee7debd7156475..2268a6fb9865fc2a744930080d585401a9316637 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -546,7 +546,7 @@ config STM32_ADC
 
 config STX104
 	tristate "Apex Embedded Systems STX104 driver"
-	depends on X86 && ISA_BUS_API
+	depends on PC104 && X86 && ISA_BUS_API
 	select GPIOLIB
 	help
 	  Say yes here to build support for the Apex Embedded Systems STX104
diff --git a/drivers/iio/counter/Kconfig b/drivers/iio/counter/Kconfig
index 44627f6e4861b21870bc174ff802a868135df6e3..b37e5fc031497a963b0a0b68d8fd0f690e571b34 100644
--- a/drivers/iio/counter/Kconfig
+++ b/drivers/iio/counter/Kconfig
@@ -7,7 +7,7 @@ menu "Counters"
 
 config 104_QUAD_8
 	tristate "ACCES 104-QUAD-8 driver"
-	depends on X86 && ISA_BUS_API
+	depends on PC104 && X86 && ISA_BUS_API
 	help
 	  Say yes here to build support for the ACCES 104-QUAD-8 quadrature
 	  encoder counter/interface device family (104-QUAD-8, 104-QUAD-4).