The housing market has been on fire for the past two years as home prices shot up into the stratosphere. Now the U.S. Federal Reserve is trying to bring them back down to Earth, part of its avowed war against the nation’s runaway inflation. But it’s using a move that could inflict even more pain on struggling homebuyers.

The Fed hiked its short-term interest rates by three-quarters of a percentage point on Wednesday as it continued its war against surging inflation. This is expected to push mortgage interest rates even higher as they tend to follow the same trajectory of the Fed’s own rates. And that’s expected to price additional would-be homeowners out of the market and make purchasing a home even more expensive.

“Housing is an interest-rate-sensitive sector of the economy,” says Robert Dietz, chief economist of the National Association of Home Builders. “When interest rates increase, housing often feels the pain first. Tightening is going to require some pain.” Mortgage rates have topped 6% on 30-year fixed-rate loans, the highest they’ve been since 2008, according to Freddie Mac. In the past year alone, monthly mortgage payments have swelled nearly two-thirds higher mostly due to a more than doubling in mortgage rates as well as higher prices. That means buyers today are paying roughly 66% more than they would have a year ago.

“Mortgage interest rates have not yet hit their peak,” says Dietz. “They’re going to go higher than where they are right now.”