diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index daf08fe980d0d658c0f24d526230e00964dfadd2..b57fba5c6d027d645573ae070649d745bab26950 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -329,7 +329,7 @@ comment "Platform RTC drivers"
 
 config RTC_DRV_CMOS
 	tristate "PC-style 'CMOS'"
-	depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC
+	depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC64
 	default y if X86
 	help
 	  Say "yes" here to get direct support for the real time clock