diff --git a/external.mk b/external.mk
index 70028c7..6597e1e 100644
--- a/external.mk
+++ b/external.mk
@@ -10,14 +10,14 @@ SKELETON_INIT_SYSTEMD_ROOTFS_PRE_CMD_HOOKS =
 # Enable required kernel options for Aimee OS storage
 define AIMEEOS_LINUX_CONFIG_FIXUPS
 $(call KCONFIG_ENABLE_OPT,CONFIG_BLK_DEV_INITRD)
-$(call KCONFIG_ENABLE_OPT,CONFIG_BTRFS_FS)
 $(call KCONFIG_ENABLE_OPT,CONFIG_EFI)
-$(call KCONFIG_ENABLE_OPT,CONFIG_MSDOS_FS)
 $(call KCONFIG_ENABLE_OPT,CONFIG_NLS_CODEPAGE_437)
 $(call KCONFIG_ENABLE_OPT,CONFIG_NLS_ISO8859_1)
 $(call KCONFIG_ENABLE_OPT,CONFIG_NLS_UTF8)
-$(call KCONFIG_ENABLE_OPT,CONFIG_SQUASHFS)
 $(call KCONFIG_ENABLE_OPT,CONFIG_VFAT_FS)
+$(call KCONFIG_SET_OPT,CONFIG_BTRFS_FS,y)
+$(call KCONFIG_SET_OPT,CONFIG_SQUASHFS,y)
+$(call KCONFIG_SET_OPT,CONFIG_MSDOS_FS,y)
 endef
 LINUX_KCONFIG_FIXUP_CMDS += $(AIMEEOS_LINUX_CONFIG_FIXUPS)