@@ -772,6 +772,9 @@ int32 DoConvertTunnelBridgeRail(TileInde
if (GetRailType(tile) == totype) return CMD_ERROR;
// 'hidden' elrails can't be downgraded to normal rail when elrails are disabled
if (_patches.disable_elrails && totype == RAILTYPE_RAIL && GetRailType(tile) == RAILTYPE_ELECTRIC) return CMD_ERROR;
endtile = CheckTunnelBusy(tile, &length);
if (endtile == INVALID_TILE) return CMD_ERROR;