diff --git a/arch/arm/configs/mainstone_defconfig b/arch/arm/configs/mainstone_defconfig
index 04efa1b3ef25..e8d26b805be6 100644
--- a/arch/arm/configs/mainstone_defconfig
+++ b/arch/arm/configs/mainstone_defconfig
@@ -27,7 +27,6 @@ CONFIG_MTD_CFI_ADV_OPTIONS=y
 CONFIG_MTD_CFI_GEOMETRY=y
 # CONFIG_MTD_CFI_I1 is not set
 CONFIG_MTD_CFI_INTELEXT=y
-CONFIG_IDE=y
 CONFIG_NETDEVICES=y
 CONFIG_NET_ETHERNET=y
 CONFIG_SMC91X=y