Michael Douglas has some “big” plans for his dad, Kirk Douglas’ upcoming 103rd birthday.

The actor, 75, joined “Jimmy Kimmel Live!” on Tuesday and spilled on what the Hollywood legend has in store on his milestone birthday.

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“Well, it’s like, so 100. Okay, so he was 100. Big birthday, big birthday. The trouble is, when you’re 100, you don’t really want a big birthday,” Michael recalled. “I threw a big party for him, it was great.”

But after turning 101, Kirk begged Michael to turn “big” into “low key.”

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“101. You know, ‘Okay, let’s have a nice party.’ ‘Again? I don’t…’ ‘Dad, it’s 101 years old. You have to have a birthday.’ Okay… 102…,” Michael explained. “So now he’s begging me, he’s got tears down his eyes. ‘Let’s just have dinner, the family together. Bring the kids.’”

Later on in the interview, Michael gushed about his 19 years of marriage with Catherine Zeta-Jones.

Kirk turns 103 on Dec. 9.

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