Potato chips and signature sauces may not be enough to lure investors to Bobby Flay’s burger IPO.

While the celebrity chef has plans to offer up shares of his fast-casual restaurant, Bobby’s Burger Palace, Morningstar’s R.J. Hottovy said now could be a bad time for an initial public offering, especially for such a small chain.

“The smaller chains that don’t have the scale, you know, that might not be the best time to do it because you’re finding ways that Amazon is disrupting the business,” Hottovy said on CNBC’s “Closing Bell.” “And overall traffic is down in the restaurant space. I’d be a little wary with an offering like…