diff --git a/arch/arm/configs/koelsch_defconfig b/arch/arm/configs/koelsch_defconfig
index 4071e61d808f84d746aab843afe09d8305626512..30157975998a7938627c445a23c04b25f452f25e 100644
--- a/arch/arm/configs/koelsch_defconfig
+++ b/arch/arm/configs/koelsch_defconfig
@@ -34,6 +34,8 @@ CONFIG_UNIX=y
 CONFIG_INET=y
 CONFIG_IP_PNP=y
 CONFIG_IP_PNP_DHCP=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_BLK_DEV_SD=y
 CONFIG_ATA=y