Leafly, an app that enables users to find, rate and review medical-marijuana dispensaries in their area, ran a full-page ad in The New York Times on Sunday — the first-ever cannabis company to do so — after the newspaper recently came out in support of legalizing marijuana.

In an editorial published last month, the Times’ editorial board endorsed federal legalization of marijuana, saying there is little evidence that suggests moderate use is more harmful than alcohol or tobacco. The paper added that people under the age of 21 should be restricted from smoking marijuana.

Leafly’s ad came less than a month after New York Gov. Andrew Cuomo signed the Compassionate Care Act, legalizing medical marijuana on July 7. New York followed in the footsteps of 23 other states that have legalized medical marijuana, including Washington and Colorado, both of which have also legalized the sale of marijuana for recreational use.

Leafly had been working on its ad, which features the slogan “Just Say Know,” for 18 months before New York legalized medical marijuana. The company said patients and the general public “need a reliable, mainstream information portal about cannabis that is free of classic stoner stereotypes.”

“We want to help New York patients learn about cannabis and make responsible and informed consumer choices about the product best suited for their medical conditions,” Leafly wrote in a blog post published Saturday.

Check out Leafly’s full ad, below:

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