diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5ad92419be19c5d67fae37158bac2b93e105d1bc..0b91756ed9800bb626e2138b362fe782747f75d9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1609,10 +1609,6 @@ config ARCH_DISCONTIGMEM_ENABLE
 	def_bool y
 	depends on NUMA && X86_32
 
-config ARCH_DISCONTIGMEM_DEFAULT
-	def_bool y
-	depends on NUMA && X86_32
-
 config ARCH_SPARSEMEM_ENABLE
 	def_bool y
 	depends on X86_64 || NUMA || X86_32 || X86_32_NON_STANDARD
@@ -1620,8 +1616,7 @@ config ARCH_SPARSEMEM_ENABLE
 	select SPARSEMEM_VMEMMAP_ENABLE if X86_64
 
 config ARCH_SPARSEMEM_DEFAULT
-	def_bool y
-	depends on X86_64
+	def_bool X86_64 || (NUMA && X86_32)
 
 config ARCH_SELECT_MEMORY_MODEL
 	def_bool y