Aero parts supplier Honeywell International lowered the upper end of its 2016 sales and profit forecast range, partly due to lower shipments in its aerospace business.

Honeywell’s shares were down 4.4% at $110.50 in extended trading on Thursday.

The company, which makes parts for Bombardier bdraf , Textron txt and General Dynamics gd business jets, said in July that demand would remain weak in the second half of 2016.

Get Data Sheet, Fortune’s technology newsletter.

Honeywell hon had to pay higher incentives to commercial planemakers in the second quarter to select its equipment. The company was also hurt by lower demand for helicopters due to weak energy markets.

The company said on Thursday it expects 2016 earnings per share of $6.60-$6.64, down from its previous forecast of $6.60-$6.70.

Honeywell’s core organic sales are now expected to be down 1-2% for 2016, compared with a 1% decline it had estimated previously.

David M. Cote, CEO of Honeywell, on Green Renovations for Buildings

Honeywell said the revised forecast also reflected the separation of its automation and control solutions business into two new reporting segments and the impact of acquisitions and divestitures.

The company also said it had recast results for the first and second quarter to reflect the adoption of the Financial Accounting Standards Board’s accounting standards for stock compensation, ahead of the mandatory effective date in 2017.

The company has recorded tax benefits of 3 cents in the first quarter and 4 cents in the second quarter.