diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 70f7eb9fed3562aaa9e072376fb3efd759d7b28e..14682396f7f7341594647b2d60d96ed9eccff8ad 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -341,6 +341,7 @@ config NUMA
 	bool "NUMA support"
 	depends on !IA64_HP_SIM && !FLATMEM
 	default y if IA64_SGI_SN2
+	select ACPI_NUMA if ACPI
 	help
 	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 	  Access).  This option is for configuring high-end multiprocessor