Apple’s latest MacBook Pro lineup may be immune to the “stage light” flaw that has plagued some 2016 and 2017 models.

Slightly longer display cables inside the newer notebooks could help prevent the wear that older units are susceptible to. It’s only a minor change, but it may eliminate nasty $600 repair bills.

Every MacBook Pro since 2016 harbors a hidden design flaw that inevitably will require an expensive repair, according to DIY repair website iFixit.

The problem supposedly lies in “delicate” ribbon cables that connect the screen with the display controller inside the main body of the laptop. Opening and closing the clamshell case eventually causes these to wear out and begin to tear, iFixit says.