Tunisia have been drawn to meet Cameroon over two legs in October and November with the winner securing a place at next year's finals in Brazil.
Krol replaces Nabil Maaloul, who resigned after Tunisia lost their final group match 2-0 at home to the tiny Cape Verde Islands on September 7.
The result meant the side missed out on a play-off berth but they were handed a reprieve just days later when Cape Verde were found to have fielded an ineligible player and FIFA awarded the match 3-0 to Tunisia, allowing them to advance to the final stage of African qualifiers.
Krol will also remain as coach of CS Sfaxien, the club he took to the Tunisian championship in May.
- Sports & Recreation
- Nabil Maaloul