diff --git a/mm/Kconfig b/mm/Kconfig
index 0bd9c2d..5585f12 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -101,7 +101,7 @@
 # with gcc 3.4 and later.
 #
 config SPARSEMEM_STATIC
-	def_bool n
+	bool
 
 #
 # Architecture platforms which require a two level mem_section in SPARSEMEM
@@ -113,7 +113,7 @@
 	depends on SPARSEMEM && !SPARSEMEM_STATIC
 
 config SPARSEMEM_VMEMMAP_ENABLE
-	def_bool n
+	bool
 
 config SPARSEMEM_VMEMMAP
 	bool "Sparse Memory virtual memmap"