A bookkeeper from Huntington indicted last year for stealing from her employer pleaded guilty Friday to charges of taking $866,114 over six years, the Nassau district attorney's office said.

Lori Maceluch, 48, is scheduled to be sentenced March 11 on charges of second-degree grand larceny and two counts of second-degree criminal possession of a forged instrument, prosecutors said.

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Maceluch could get 3 to 9 years in prison at sentencing, authorities said.

She stole from an Locust Valley architecture firm, a theft that was discovered in late 2011 when an internal audit of the company uncovered discrepancies in the accounts payable and accounts receivable, officials said. Maceluch was fired shortly thereafter.