--- a/disaster_cmd.c	Tue Aug 15 14:52:17 2006 +0000
+++ b/disaster_cmd.c	Tue Aug 15 15:18:03 2006 +0000
@@ -951,7 +951,7 @@
 	Disaster7_Init,
 };
 
-#define MK(a, b) { (a) - MAX_YEAR_BEGIN_REAL, (b) - MAX_YEAR_BEGIN_REAL }
+#define MK(a, b) { (a) - BASE_YEAR, (b) - BASE_YEAR }
 static const struct {
 	byte min;
 	byte max;