diff --git a/src/mainboard/protectli/vault_ehl/Kconfig b/src/mainboard/protectli/vault_ehl/Kconfig
index 73e0984..5f283ee 100644
--- a/src/mainboard/protectli/vault_ehl/Kconfig
+++ b/src/mainboard/protectli/vault_ehl/Kconfig
@@ -29,6 +29,9 @@
 config CBFS_SIZE
 	default 0x900000
 
+config DIMM_MAX
+	default 1
+
 config VBOOT
 	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
 	select GBB_FLAG_DISABLE_FWMP