The village of Pustec was mentioned in the Slepche Beadroll from the 16th century. The survey by Dimitar Mishev (D. Brancoff) from 1905 shows that the inhabitants of the village of Pustec () were in the bosom of the
Bulgarian Exarchate. There were 400
Bulgarian Exarchists in the village. The French linguist
André Mazon in his study on Slavic folklore in Albania from 1936 noted Pustec as a Bulgarian village in the region of Mala Prespa. In 1939, on behalf of 70 Bulgarian houses in Pustec, Todor Postalov signed a request by the local Bulgarians to the Bulgarian
tsaritsa Giovanna requesting her intervention for the protection of the Bulgarian people in Albania – at that time an Italian protectorate. In 1973, the official name of the village was changed to
Liqenas by the Albanian government. In 2013, however, the original Slavic name,
Pustec, was once again made official by the Albanian government. ==Demographics==