--- a/Makefile	Fri Jul 29 19:35:23 2005 +0000
+++ b/Makefile	Fri Jul 29 21:36:02 2005 +0000
@@ -670,6 +670,7 @@
 C_SOURCES += rail.c
 C_SOURCES += rail_cmd.c
 C_SOURCES += rail_gui.c
+C_SOURCES += railtypes.c
 C_SOURCES += rev.c
 C_SOURCES += road_cmd.c
 C_SOURCES += road_gui.c