How do I get this function to print correct?

This isn't my full script but this is the problem i can't resolve, even when the number 121 is typed in the Textbox it won't print correct.

Textbox = script.Parent

Textbox.Changed:Connect(function()
    if Textbox.Text == 121 then
        print('correct: '..Textbox.Text)
    else
        print('incorrect: '..Textbox.Text)
    end
end)