p. 256
दोषत्यागेऽप्रमादः स्यात्स चाप्यष्टगुणो मतः ॥
In plain words
Dropping your faults calls for vigilance — attention that never lapses. And that vigilance, too, is reckoned as eightfold.
Close to the Sanskrit
In the abandoning of faults, there should be non-negligence; and that too is held to be eightfold.