The Greens have welcomed the removal of the Border Force Act gag on doctors, but have called for it to be removed from all other detention centre workers and contractors.

"This is a humiliating backdown by the Government and an admission that all departmental workers and contractors were in fact gagged by Section 42 of the Border Force Act," Australian Greens Leader Senator Richard Di Natale said.

"This gives the lie to the government's claim that workers and contractors are protected as whistle-blowers."