Costco executives told investors that recent shopper habits are sending tell-tale signals that a recession is on the way.

Particularly, customers are avoiding pricey beef products and instead are buying cheaper meats that include pork and chicken, according to Business Insider.

Costco CFO Richard Galanti warned that this consumer behavior was quite common during previous economic downturns.

Cost-efficient canned meats and fish — products with longer shelf lives — are also increasing in popularity.

Another indicator that customers are tightening their belts is that the Costco Kirkland brand, known for being cheaper than competitors, saw growth in the previous quarter.

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