The Belgian company plans to sell underperforming outlets.
At least nine franchised restaurants in Belgium and two in France out of its 333 total franchise operation are expected to go.
The company is still suffering from the aftermath of bovine spongiform encephalopathy although it says it is past the worst.
It said foot-and-mouth would not affect sales.
Sales are lower than a year earlier but the company said these months were generally poor and gave no indication of the full-year results.
It has hired McKinsey to come up with operating models to maximise performance.