diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 8df73714caf1..19f0cc8a21ed 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -19,6 +19,7 @@ config SPARC64
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_ARCH_TRACEHOOK
 	select ARCH_WANT_OPTIONAL_GPIOLIB
+	select RTC_CLASS
 
 config GENERIC_TIME
 	bool