diff -r eb78fb69096f -r 3b6a36860a47 src/industry_cmd.cpp
--- a/src/industry_cmd.cpp	Fri Sep 28 21:15:45 2007 +0000
+++ b/src/industry_cmd.cpp	Fri Sep 28 21:24:25 2007 +0000
@@ -65,7 +65,8 @@
 
 	/* once performed, enable only the current climate industries */
 	for (IndustryType i = 0; i < NUM_INDUSTRYTYPES; i++) {
-		_industry_specs[i].enabled = HASBIT(_origin_industry_specs[i].climate_availability, _opt.landscape);
+		_industry_specs[i].enabled = i < NEW_INDUSTRYOFFSET &&
+				HASBIT(_origin_industry_specs[i].climate_availability, _opt.landscape);
 	}
 
 	memset(&_industry_tile_specs, 0, sizeof(_industry_tile_specs));