Little Lena from Atco wasn't too happy to find out she's having a little brother during her parents' gender reveal on Halloween.

Her parents thought it would be a nice Halloween surprise to find out the gender of their baby - but I guess it sort of backfired.

In the video, Dylan Wolfe cuts into the jack-o-lantern themed box as his wife, Angela, and Lena look on with anticipation.

When the blue balloons come out of the box, the parents are overcome with joy to find out their adding a baby boy to their family. Meanwhile Lena is so disappointed she actually starts crying.

Poor Lena apparently really wanted a baby sister.

Like 6abc News says, now she's learned the hard life lesson that we don't always get what we want!

Watch the video below because her disappointment is just adorable:

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