Table's starting value = [[]] can't add row

[tertris-me]

I am expecting a starting value of [[]] table to add a row after I press a the "add a row" button (self.change), but it doesn't react after I press the button.

This is my code:

class App(customtkinter.CTk):

    def __init__(self):
        super().__init__()
        starting_value = [[]]
        self.info = CTkTable.CTkTable(self, values=starting_value)
        self.info.grid(row=0, column=0)

        self.change = customtkinter.CTkButton(self, text="add a row", command=self.change_callback)
        self.change.grid(row=1, column=0)

    def change_callback(self):
        self.info.add_row([["a"]])


root = App()
root.mainloop()

This is my interface before and after I click the button:

But when I make the starting_value = [["starting","value"]], everything works as intended.

Interface before I pressed the button:

Interface after:

Is it not possible to make changes to a table with a value [[]]? Thanks in any help

[Akascape]

@tertris-me
You must need to define 1 row as header.

[tertris-me]

Thanks for the fast reply. How can I do that?

[AgniprabhaGanguly]

yeah