We consider an OLG model with production and altruistic agents initially developed by Barro (1974). Through a simple example, we show that, contrary to the intuition of Abel (1987) and Weil (1987), an increase in the degree of altruism can result in a decrease in the stationary level of bequests even if the Diamond model has a unique and stable steady state. To rule out this counterintuitive case, an assumption on the curvature of the production function is necessary.