diff --git a/src/northsouthbridge/sis/630/southbridge.c b/src/northsouthbridge/sis/630/southbridge.c
index fa096b3a79..ef0562d4c0 100644
--- a/src/northsouthbridge/sis/630/southbridge.c
+++ b/src/northsouthbridge/sis/630/southbridge.c
@@ -199,7 +199,7 @@ rtc_fixup(void)
 
 	/* Select 24 HR time */
 	outb_p(0x0B, 0x70);
-	outb_p(0x26, 0x71);
+	outb_p(0x02, 0x71);
 
 	/* Clear Checksum Error */
 	outb_p(0x0D, 0x70);