Mexico has announced it will take Google to court if it insists on changing the Gulf of Mexico’s name to “Gulf of America” for Maps users in the United States, President Claudia Sheinbaum said Monday.

She said her government had written again to the US company arguing that President Donald Trump’s executive order on the subject only applies to the part of the continental shelf belonging to the United States.

The letter informs Google that “under no circumstances does Mexico accept the renaming of any geographic area that includes part of its national territory and that is under its jurisdiction,” she said.