“The Sopranos” creator David Chase accidentally spoiled the infamously cryptic series finale during a leaked interview for “The Sopranos Sessions,” his book celebrating the Emmy-winning HBO mob drama, reports the Independent.

At the end of 2007’s final episode, titled “Made in America,” Tony Soprano (played by the late James Gandolfini) is eating out with his family amid a turf war between the New Jersey and New York Mafia families while an enemy hitman waits in their midst.

The screen then fades to black as Journey’s “Don’t Stop Believin’ ” blares on the soundtrack, leaving it ambiguous whether the show’s star gets whacked — until now.

Spoiler alert: In the roundtable discussion, co-author Alan Sepinwall asked Chase, “When you said there was an end point, you don’t mean Tony at Holsten’s [the diner], you just meant, ‘I think I have two more years’ worth of stories left in me.’ ”

Then Chase, 74, dropped the bombshell: “Yes, I think I had that death scene around two years before the end … But we didn’t do that.”

Noticing his epic leak, co-author Matt Zoller Seitz chimed in: “You realize, of course, that you just referred to that as a death scene.”

“F - - k you guys,” replied Chase upon realizing his blunder.

Indeed, in one fell swoop, the mob-show boss retrospectively spoiled a plot point that’s been debated for years by everyone from The Post to the “Sopranos” stars themselves.

Here’s hoping Chase’s goof doesn’t have spoiler implications for the “Sopranos” prequel, “The Many Saints of Newark,” which is slated to be released on March 12, 2021.