ENTERTAINMENT
03/21/2016 10:22 am ET

Hilary Duff And Ex Mike Comrie Put Aside Differences For Son's Birthday

Too cute!

Now that's one happy family! 

Hilary Duff reunited with her ex-husband Mike Comrie over the weekend to celebrate their son's birthday. The "Younger" actress posted a photo of the two proud parents holding Luca, who turned four on Sunday. 

"We are so proud of this boy!" Duff captioned the adorable pic. 

We are so proud of this boy!

A photo posted by Hilary Duff (@hilaryduff) on

Duff also Instagrammed another photo of Luca earlier in the day, telling her "little big boy" that her "heart just explodes" for him. So sweet!  

Duff and Comrie married in 2010 and announced their separation in 2014. The actress filed for divorce one year later, but the exes have kept things amicable -- going on vacations and frequent outings together for the sake of their son. 

"We have such a great kid, and we’re both so obsessed with him," Duff said of Comrie during a visit to "The Ellen Show" in January 2016. "We are good friends and we laugh a lot and we have a great communication. We share pictures when one is not with Luca. Yeah, he’s great. We are great and we keep on trucking." 

There you have it, folks. 

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