David Duchovny and Gillian Anderson’s dogs are great friends.

Over the weekend, Duchovny celebrated his 61st birthday, and his “X-Files” co-star sent him best wishes from her adorable pup.

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Hey @brick_duchovny it’s Stella,” she wrote in a Tweet from her dog to his. “I heard it was your human’s birthday. Hey @davidduchovny happy birthday, love Stella.”

Duchovny responded from his dog Brick’s account, thanking Stella and sharing a video of the dog playing with a tennis ball by the beach.

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The two actors have birthdays very close to each other, with Duchovny’s falling on August 7, while Anderson turns 53 on August 9.