The cost of renovating Findel airport’s runway is expected to almost double, according to Luxembourg’s Infrastructure Minister.

Speaking on RTL Radio on Friday, François Bausch said the estimate of 80 to 100 million euros made in September had been revised up to 200 million euros to include renovations to parking bays and surroundings.

It is not the first time the bill has gone up. Original forecasts which foresaw renovations to the runway and parking areas, were estimated at between 30 and 40 million euros.

The renovations are needed in order for the airport to keep up with the increasing number of passengers passing through. In 2014, 2.4 million passengers passed through, rising to 2.7 million in 2015 and an anticipated 3 million are expected this year.

In accordance with European regulations, Luxembourg’s government is allowed to pay more than half of the total cost. The remainder will be paid by operating company LuxAirport.