Don Brown’s bank account will be a bit thicker when the calendar hits April 1, thanks to a healthy retention bonus.

According to MLive.com, the Michigan defensive coordinator is due a $600,000 retention bonus on the first day of April. The bonus comes in addition to the $1.1 million he’s scheduled to make in 2020. He’s the highest-paid assistant coach on Jim Harbaugh’s staff in Ann Arbor.

The retention bonus comes a year after Brown inked a new three-year deal with the Wolverines last February. Last year, Brown received a $500,000 retention bonus in addition to his $1.1 million salary for 2019.

Michigan’s defense has been consistently productive under Brown’s leadership. While last season was a bit of a down year, the Wolverines still ranked 25th nationally in scoring defense (20.7 points per game), 22nd in rush defense (121.7 yards per game) and 11th in total defense (307.2 yards per game).

The Wolverines finished the 2019 season with a 9-4 record.