Chris HemsworthIs offering Liam Hemsworth a family discount in honor of his 32nd birthday.

The Marvel star took to Instagram on Jan. 13 to hilariously troll his younger brother on his special day. Two photos were taken in a shirtless state of the man. Hunger Games actor, Chris wrote, “Happy birthday @liamhemsworth hopefully this is the year you finally get in shape and take care of yourself.”

Chris made Liam an offer. He teased, “To assist with your transformation, I’m going to gift you 10% off @centrfit #familydiscount.” “Love you.”

In the comments section, delighted fans couldn’t help but gush over Chris’ Instagram tribute, which also featured a throwback photo of a baby Liam. A fan wrote, “This must reflect true brother love.” Another wrote that a family discount on a member’s membership was the best gift you could give to your brother.

It Thor star appeared to be getting revenge on Liam with this birthday tribute. Why? Well, back in August, for Chris’ 38th birthday, Liam trolled Chris by posting a photo with brother Luke HemsworthThe caption was cheekily written, “Happy Birthday @chrishemsworth!”