diff --git a/src/soc/intel/jasperlake/Kconfig b/src/soc/intel/jasperlake/Kconfig
index fa26a54..c40c153 100644
--- a/src/soc/intel/jasperlake/Kconfig
+++ b/src/soc/intel/jasperlake/Kconfig
@@ -174,6 +174,10 @@
 	hex
 	default 0xc35
 
+config VBT_DATA_SIZE_KB
+	int
+	default 9
+
 config VBOOT
 	select VBOOT_SEPARATE_VERSTAGE
 	select VBOOT_MUST_REQUEST_DISPLAY