Sheikh Sabah had hoped to end conflict between ministers and MPs
The ruler of Kuwait has re-appointed his nephew, Sheikh Nasser al-Mohammed al-Sabah, as prime minister.
Sheikh Nasser had resigned on Monday, as required by the constitution, following Saturday's general election.
The poll was called to end disputes between MPs and ministers on a range of issues, including the economy.
Some members of parliament had warned that if the emir re-appointed Sheikh Nasser, their campaign against the government would continue.
Saturday's general election saw a large bloc of Islamist members and a small number of pro-Western liberals elected to parliament.
The make-up of parliament is similar to the one dissolved by the emir, Sheikh Sabah al-Ahmed al-Sabah, in March.
Since independence, the position of prime minister and key portfolios such as defence, interior and foreign affairs have always been held by members of Kuwait's ruling family.
Correspondents say the interior minister is expected to be among those replaced in the new cabinet, as one MP is already threatening to call him to parliament for questioning.