diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index b92b9445255d36bdf1734dfcb94d78b30892c755..6c4e9aaa70c195c57cfedc49281e941a53649e1d 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -10,6 +10,7 @@ config M32R
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
+	select GENERIC_ATOMIC64
 
 config SBUS
 	bool