South Korea’s education ministry has asked a local publisher to revise an elementary school textbook to refer to North Korean authorities as a “regime” rather than a “government.”

Jihaksa Publishing Co. confirmed to NK News on Thursday that it agreed to a request from the ministry’s textbook advisory committee to use the phrase “establishment of the DPRK regime” in a fifth-grade humanities textbook.

The panel reportedlycited the U.N.’s approval of the Republic of Korea as the peninsula’s only “lawful government” as the reason for the change, but didn’t give further details. The ministry may have been referencing the U.N.