Nigeria has made it more difficult for foreigners to work in the country.

Foreigners looking to work in Nigeria, Africa’s biggest economy, might be out of luck.

An executive order signed by Nigeria’s president Buhari on Monday(Feb. 5) “prohibits the ministry of interior from giving visas to foreign workers whose skills are readily available in Nigeria.” It’s not a blanket ban though. The executive order states that foreigners will be considered for jobs “where it is certified by the appropriate authority that such expertise is not available in Nigeria.” The executive order also tells government agencies to “give preference to Nigerian companies and firms in the award of contracts.”

By Yomi Kazeem.

Full story at Quartz.