Nineteen percent of workers admit they tell lies at the office at least once a week, a recent CareerBuilder.com survey found.

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Twenty-four percent of hiring managers say they have fired an employee for being dishonest, says the study of 2,050 workers -- including 1,000 hiring managers.

Fifteen percent of workers reported they were caught in a lie at the office. When asked why they felt compelled to bend the truth at work, 26 percent of respondents said they lied to appease a customer.

Thirteen percent said they lied to cover up a failed project, mistake or missed deadline; 8 percent said they were trying to explain an unexcused absence or late arrival; 8 percent lied to protect another employee; and 5 percent lied to get another employee in trouble or look better in front of a supervisor.

"It may seem cliché, but honesty is the best policy," said Rosemary Haefner, vice president of human resources at CareerBuilder.com. "Eighty-five percent of hiring mangers say they are less likely to promote an employee who has lied to them or other members of the organization."