After retailer Amazon was blasted by the White House for potentially citing the tariffs as part of the price on goods purchased by U.S. consumers, Apple is determined to avoid a similar fate.

During the call, Cook offered analysts and investors his first thoughts on the potential impact of the tariffs on the company’s earnings. He said there was “limited impact” in the second quarter, partly due to Apple planning ahead and optimizing its supply chains.

Tariff uncertainty has sent shares of Apple, which makes 90% of its products in China, down about 15% this year.