Zion Williamson is tall. But not that tall.

The No. 1 pick in this year’s NBA draft officially was listed at 6-foot-6, according to The Athletic, one inch less than what the Pelicans rookie was pegged his lone season at Duke.

The revelation comes as the league begins to crack down on misleading player information in response to 26-year-old Buddy Hield mysteriously being listed 27 on the Sacramento Kings’ website last season.

“A consistent process has been created to ensure the integrity and accuracy of the data on team rosters,” NBA spokesman Mike Bass told the New York Times in September.

Part of that process includes players being measured without shoes by their team’s physicians.

In the past many teams reportedly would use the measurements listed on their players’ college websites.

The bigger question remains how in shape Williamson will be once the season tips off this month.

The power forward looked more than his 285-pound listing during Summer League, where he was shut down after just nine minutes due to knee and back soreness.