Using molecular dynamics simulations we study the out of equilibrium dynamic correlations in a model glass-forming liquid. The system is quenched from a high temperature to a temperature below its glass transition temperature and the decay of the two-time intermediate scattering function C ( t w ; t + t w ) is monitored for several values of the waiting time t w after the quench. We find that C ( t w ; t + t w ) shows a strong dependence on the waiting time; i.e.; aging; depends on the temperature before the quench; and; similar to the case of spin glasses; can be scaled onto a master curve.