Boulevard Brewing Co.’s Jam Band Berry Ale may soon have a berry-conditioned sibling.

According to filings with the Alcohol and Tobacco Tax and Trade Bureau (TTB), Boulevard is working on Berry Noir a 4.5 percent ABV sour ale that will be packaged in 12-ounce cans. The sour ale with “mixed berries” should be dark, tart and crisp according to the label.

An email sent to the brewery for additional information was not immediately returned.