(CNN) The Kardashians are known for their fun Halloween costumes. They've been angels, playboy bunnies and even forest fairies.

But for the Kardashian-West family portrait this Halloween, things were a bit more terrifying. Well, at least for 1-year-old Chicago.

The family of six dressed up as the Flintstones, and Kanye was none other than Dino the Dinosaur.

"This family pic was such a challenge because Chicago was so scared of Dino!" Kardashian said on Twitter and Instagram

"We tried to explain and show her that it was just daddy but she didn't get the concept yet! So shout out to the photographer for editing her in & making our family Flinstones dreams come true!""

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