The attack on Maitiga airport on Thursday caused no major damage but delayed a Tripoli-based delegation from attending the Rabat-based talks.
Mohamed El Hejazi, a spokesman of forces allied to the UN-backed Tobruk-based government claimed responsibility for the attack.
"The strike is part of a war against terrorism that will continue until Libya has been freed of terrorism," he said.
Libya's legislators are split between the UN-recognised government in Tobruk and the General National Congress, a rival legally-installed government in Tripoli