diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index dff9edfc746..17ef9b22022 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -155,6 +155,8 @@ config IA64_HP_ZX1_SWIOTLB
 
 config IA64_SGI_SN2
 	bool "SGI-SN2"
+	select NUMA
+	select ACPI_NUMA
 	help
 	  Selecting this option will optimize the kernel for use on sn2 based
 	  systems, but the resulting kernel binary will not run on other