March 10, 2015 6:18 PM EDT

Ashton Kutcher has a problem with men’s bathrooms—where are all the diaper changing stations?

Kutcher, who welcomed a daughter last fall with wife Mila Kunis, wrote on his Facebook page this week that he’s challenging his fans to find a public men’s restroom with a diaper changing station, in exchange for an online shout-out:

As of Tuesday evening, the search is still on.

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