MAF gasket size

Working my way through the first 100 dollars- got the MAF off and sprayed clean. To me the gasket is distended and looks too small (diameter) for the channel, although it has no outward signs of stretch. It's as clear in the photo as I could get, the gap is about the width of a penny without any stretch.





So is this the wrong size, just stretched, or that's the way it normally fits, try not to pinch it getting it back in?

Thanks