In a boost that even Chief Executive Don Thompson described as "modest," McDonald's said its global same-store sales rose 0.7% in July.
The gauge, which measures sales at stores open at least 13 months, also showed a 1.6% surge in the U.S., a heartening sign for a chain that has spent recent months battling strengthening competitors and dealing with wage protests from its workers.
The Oak Brook, Ill., company said its domestic growth drew from its morning menu, core classics and value offerings. The burger giant has also launched new items this year -- a chicken McWrap and egg-white breakfast sandwiches -- focused on health-conscious consumers.
The fast food behemoth had reported a slight decline in U.S. same-store sales in June, warning that the rest of 2013 will "remain challenged."
In Europe, Asia, Africa and the Middle East, McDonald's said same-store sales slumped 1.9% last month.
McDonald's stock fell in morning trading but was slightly ahead by midsession at $98.42 a share.