--- a/rail_cmd.c	Fri Dec 29 12:03:28 2006 +0000
+++ b/rail_cmd.c	Fri Dec 29 12:18:43 2006 +0000
@@ -881,7 +881,8 @@
 
 extern int32 DoConvertStationRail(TileIndex tile, RailType totype, bool exec);
 extern int32 DoConvertStreetRail(TileIndex tile, RailType totype, bool exec);
-extern int32 DoConvertTunnelBridgeRail(TileIndex tile, RailType totype, bool exec);
+extern int32 DoConvertTunnelRail(TileIndex tile, RailType totype, bool exec);
+extern int32 DoConvertBridgeRail(TileIndex tile, RailType totype, bool exec);
 
 /** Convert one rail type to the other. You can convert normal rail to
  * monorail/maglev easily or vice-versa.
@@ -922,8 +923,8 @@
 				case MP_RAILWAY:        proc = DoConvertRail;             break;
 				case MP_STATION:        proc = DoConvertStationRail;      break;
 				case MP_STREET:         proc = DoConvertStreetRail;       break;
-				case MP_TUNNEL:         proc = DoConvertTunnelBridgeRail; break;
-				case MP_RAILWAY_BRIDGE: proc = DoConvertTunnelBridgeRail; break;
+				case MP_TUNNEL:         proc = DoConvertTunnelRail;       break;
+				case MP_RAILWAY_BRIDGE: proc = DoConvertBridgeRail;       break;
 				default: continue;
 			}