diff --git a/buildroot-external/board/ova/barebox.config b/buildroot-external/board/ova/barebox.config
index 18bf0c4fa..407a3a162 100644
--- a/buildroot-external/board/ova/barebox.config
+++ b/buildroot-external/board/ova/barebox.config
@@ -3,13 +3,17 @@ CONFIG_PROMPT="hassio-os:"
 CONFIG_BLOCK=y
 CONFIG_PARTITION=y
 CONFIG_PARTITION_DISK=y
+CONFIG_PARTITION_DISK_EFI=y
 CONFIG_DEFAULT_COMPRESSION_LZ4=y
 CONFIG_STATE=y
 CONFIG_BOOTCHOOSER=y
 CONFIG_CLOCKSOURCE_EFI=y
 CONFIG_FS_EXT4=y
-# CONFIG_FS_RAMFS is not set
 CONFIG_FS_FAT=y
 CONFIG_FS_SQUASHFS=y
-CONFIG_ZLIB=y
+CONFIG_FS_EFI=y
+CONFIG_FS_EFIVARFS=y
+CONFIG_FS_FAT=y
+CONFIG_FS_FAT_WRITE=y
+CONFIG_FS_FAT_LFN=y
 CONFIG_LZ4_DECOMPRESS=y