Kemp started in left field and went 1-for-2 with a walk and a two-run home run in Tuesday's 5-3 win over the Rangers.
Kemp's role with the Astros had been on decline, but the injury to shortstop Carlos Correa, who was placed on the disabled list with a back injury, triggered a roster shuffle that opened up at-bats again for Kemp. Marwin Gonzalez has been starting for Correa, leaving an outfield spot for Kemp or Jake Marisnick.