Boeing is concerned that the virus outbreak in China could hurt deliveries of new planes early this year. The company’s chief financial officer gave the outlook Wednesday at an investor conference.

China is an important market for Boeing. But restrictions on travel there, and airlines suspending flight is hurting air travel.

The virus concern comes after a dismal January report for Boeing, which got no new airline orders for planes last month and delivered just 13 planes to customers.

Boeing’s business has slumped since the grounding nearly a year ago of its 737 Max jet after two crashes that killed 346 people.