The Academy of Motions Pictures Arts and Sciences is tweaking their system and the first change is that documentary series are no longer eligible for an Oscar award, CBS News reports.

The announcement of the new regulation, which includes other changes, comes after Ezra Elderman won an Oscar for O.J.: Made in America, during the 89th annual award ceremony. Some critics noted that the body of work was better suited for the Emmys.

O.J.: Made in America had a run time of 467 minutes and snagged the win as part of the long film category. While some caught its brief theatrical run, others viewed the docu-film while it navigated the festival circuit, but most watched it as a five-part series on ESPN.

In addition to docs being ineligible, the Academy is expanding its animated feature category to be more inclusive. As opposed to it favoring the larger studio houses, nominations will now be open to the entire film academy.

On the flip side, the switch-up may add difficulty for smaller films to be recognized.

The numerical voting system will also have a new roll out. Get the full scoop, here.