The family of a 2-year-old girl with a rare genetic condition is speaking out against Internet trolls who began mocking her appearance in a Facebook photo, MyFox8.com reported.

Mariah Anderson, of Summerville, S.C., has chromosome two duplication syndrome, which causes developmental delays and motor skill problems. According to My Fox 8, Anderson’s life expectancy is unclear.

When her mother posted a photo of Mariah on Facebook for the toddler’s birthday, people began poking fun of her face and reportedly turned her photo into a meme that circulated the Web. People compared the sick little girl to a leprechaun and a monster.

“If you’re out there and you’re doing these things, and you think that it’s funny, it’s not funny,” said Linda Pringle, Mariah’s grandmother. “This is actually a human being, this is a child, this is a baby.”

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