Box 2b of Form 1099-R does not show anything "Checked", only "Reads" "Total Distribution". Does this mean I have a Total Distribution, or not...since there is no "check"?

As a military veteran, who receives standard military retiree pay, it is unclear to me if I am provided a Total Distribution. Should this box actually have a "Check" (literally) in this box, or remain empty if neither applies?