diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 35ca3a1..8e5242c 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -783,7 +783,7 @@
 comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
 	depends on X86_SUMMIT && (!HIGHMEM64G || !ACPI)
 
-config DISCONTIGMEM
+config ARCH_DISCONTIGMEM_ENABLE
 	bool
 	depends on NUMA
 	default y
@@ -808,6 +808,8 @@
 	depends on NUMA
 	default y
 
+source "mm/Kconfig"
+
 config HIGHPTE
 	bool "Allocate 3rd-level pagetables from highmem"
 	depends on HIGHMEM4G || HIGHMEM64G