Ajax coach Frank de Boer agreed to extend his contract until the middle of 2017, the Amsterdam based club announced on Tuesday.

His former contract ran out in 2014. De Boer will now sign a new four-year deal running from July 1, 2013 until June 20, 2017.

The 43-year-old former Dutch international started as head coach of Ajax in December 2010. He captured three consecutive Dutch league in the past two-and-a-half years.

"This new contact is exactly what I wanted," De Boer reacted on the website of Ajax. "I like it here and my family is happy here. I also see enough challenges."