diff --git a/deviceinfo_schema.toml b/deviceinfo_schema.toml
index a3a989d17..820bbe7f9 100644
--- a/deviceinfo_schema.toml
+++ b/deviceinfo_schema.toml
@@ -374,6 +374,7 @@ description = "For devices that require dtbo populated: set dtbo partition to be
 [variable.flash.boot_filesystem]
 description = "Sets the filesystem used for the /boot partition containing initramfs-extra"
 allow_device_variant_suffix = true
+default_value = "ext2"
 
 [variable.flash.root_filesystem]
 description = "Sets the filesystem used for the / partition"