Austria's largest marathon takes place on April 15.
The Ethiopian wants to show the world he's not done yet.
He defeated Haile Gebrselassie at the end of the race.
He faces stiff competition in Tokyo on Sunday.
Here's a sneak peek at the shoes Patrick Makau was wearing when he ran 2:03:38 in Berlin last weekend.
He hopes to qualify for the Olympics next February.
Though he's struggled lately, the former marathon-record holder isn't finished yet.
He hopes to redeem himself after his Berlin DNF last month.