diff --git a/target/linux/at91/patches/200-experimenta_adc_driver.patch b/target/linux/at91/patches/200-experimenta_adc_driver.patch
index dc59a169520a0d190aa11fa7fdfad0873ffe7e55..fc32017ec203d7f37e0b3156f06ae305e48c1460 100644
--- a/target/linux/at91/patches/200-experimenta_adc_driver.patch
+++ b/target/linux/at91/patches/200-experimenta_adc_driver.patch
@@ -7,7 +7,7 @@ Index: linux-2.6.35.9/drivers/misc/Kconfig
  	  interval timing.
  
 +config AT91_ADC
-+	bool "AT91 ADC converter"
++	tristate "AT91 ADC converter"
 +	depends on ARCH_AT91 && SYSFS
 +
  config IBM_ASM