U.S. retail sales unexpectedly fell in June, dragged down by the auto sector, and demand for other goods wasn’t up to par, either, underscoring slowing in the economy.

Sales decreased by a seasonally adjusted 0.1%, the U.S. Commerce Department said today. May sales rose by 0.1%.

Economists had forecast retail sales rising 0.4% in June. The decrease was the first in four months.

Sales in June of auto and parts retailers decreased by 1.4%, after falling by 2.1% in May. Outside the auto sector, all other retail sales climbed, up 0.3%. But economists expected a 0.4% increase. Sales excluding autos had gone up 0.7% in May.

Gas station sales increased by 1.1% last month after rising 1.9% in May. Stripping away sales at gas stations, demand at all other retailers fell last month, down 0.2%.

Excluding both autos and gasoline, all other retail sales inched 0.1% higher in June. Demand excluding gas and autos rose by 0.6% in May.

Sales last month advanced 0.3% at general merchandise stores; 0.7% at health and personal care stores; 0.4% at sporting goods, hobby and book stores; 0.3% at clothing stores; 0.4% at food and beverage stores; 1.3% at furniture stores; and 0.2% at restaurants and bars.

Sales last month fell 0.3% at mail order and Internet retailers; 0.7% at electronics and appliance stores; and 1% at building material and garden stores.