President Donald Trump said Friday that he “might” slap tariffs on French wine in response to the country’s new tax affecting technology companies.

The president told French President Emmanuel Macron that he would put duties on French wine if France passed the digital services tax it approved earlier this month, Trump told reporters Friday. In a tweet earlier Friday, Trump also suggested he could target French wine — a move experts considered the most likely U.S. response to the French digital services tax.

“I’ve always said American wine is better than French wine!” Trump tweeted.

In the tweet, the president said his administration will unveil “a substantial reciprocal action” following what he called Macron’s “foolishness.”