The producer price index was unchanged in August on a seasonally adjusted basis, while the core rate, which excludes food and energy rose 0.1%, the Labor Department reported Tuesday.
In July, PPI rose an unrevised 0.1% while the core rate also gained an unrevised 0.2%.
Food prices slipped 0.5% in August, while energy prices slumped 1.5%.
Economists polled by Thomson Reuters expected a 0.1% rise in the headline number and a 0.2% core increase.