Cracks in their financial nest eggs mean plenty of older workers are asking to stay on the job longer, but mature employees are more optimistic about their retirement prospects than a year ago, according to a new survey

Last year, 72 percent of workers age 60 and older said they were putting off retirement because they couldn’t afford it but this year that number is down to 65 percent, according to a survey of 500 people released Wednesday by CareerBuilder.

But it’s not just financial constraints that are keeping people’s nose to the grindstone. According to the survey, 39 percent of workers said they enjoyed their job and 36 percent enjoyed where they worked and 26 percent indicated they worried that retirement would be boring. Fourteen percent of survey respondents said they enjoyed feeling needed at work.

Still, more than one in four workers over the age of 60 said they planned to retire within the next two years, the survey found.

CareerBuilder is partially owned by Tribune Co.