diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index b47710c..17683de 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -96,7 +96,7 @@
 static int rtc_irq;
 #endif
 
-#ifdef	CONFIG_HPET_RTC_IRQ
+#ifdef	CONFIG_HPET_EMULATE_RTC
 #undef	RTC_IRQ
 #endif