Belgium: Can staff be sacked for wearing a headscarf?

Belgium: Can staff be sacked for wearing a headscarf?

Via VRT:
Belgium's anti-racism centre is taking the Dutch store Hema to court after it sacked an employee following complaints from customers that she was wearing a Muslim headscarf.

The centre says that it is seeking clarity about a principle.

The employee started to wear the headscarf after she converted to Islam. After the store received several complaints from customers it decided no longer to enlist her services via a temping agency.

(source)