diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 3bb221d..5fa3c67 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -794,6 +794,9 @@
 
 endmenu
 
+config ARCH_ENABLE_MEMORY_HOTPLUG
+	def_bool y
+	depends on HIGHMEM
 
 menu "Power management options (ACPI, APM)"
 	depends on !X86_VOYAGER