This paper studies the Great Depression in Belgium within the open-economy dynamic general equilibrium approach. Results from the simulations show that a two-good model with total factor productivity shocks and nominal exchange rate shocks can account for most of the 1929-1934 output drop. The data mimicking ability of the model is good along other dimensions as well, most notably hours worked, the consumption price index and the terms of trade. The model is also able to catch some of the dynamics of imports and exports.