The aim of the present article is to investigate the supposed allomorphy of the adjectival inflectional ending of the nominative-accusative plural masculine in Old Khotanese. Through a survey of the passages in which the relevant forms occurred, it is argued that the only regular marker is -a, as all other adduced forms require an alternative explanation. Some such forms should instead be regarded as belonging to the feminine declension, others to a different part of speech, and others yet as different case forms.