diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index 0237487f95..ae9d03ed02 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -39,7 +39,7 @@
 #include "hw/i386/apic.h"
 #endif
 
-#define DEBUG_CMOS
+//#define DEBUG_CMOS
 //#define DEBUG_COALESCED
 
 #ifdef DEBUG_CMOS