Lakins was optioned to Triple-A Norfolk following Sunday's loss to the Rays, Rich Dubroff of BaltimoreBaseball.com reports.
Lakins was recalled to the Orioles on June 4. He'll now return to Norfolk after allowing four runs across four innings in his latest stint with the big club. Despite his demotion Sunday, the right-hander should be a candidate to return to the Baltimore bullpen later this summer.