diff --git a/matlab/perfect-foresight-models/det_cond_forecast.m b/matlab/perfect-foresight-models/det_cond_forecast.m
index 98875fb91757d54442cab2f511e9be3f5d97ca62..1b4fdba0fa83703e4779d5ed2c0877c2ecd5cacd 100644
--- a/matlab/perfect-foresight-models/det_cond_forecast.m
+++ b/matlab/perfect-foresight-models/det_cond_forecast.m
@@ -36,6 +36,9 @@ verbosity = options_.verbosity;
 if options_.periods == 0
     options_.periods = 25;
 end
+if isempty(options_.qz_criterium)
+    options_.qz_criterium = 1+1e-6;
+end
 %We have to get an initial guess for the conditional forecast
 % and terminal conditions for the non-stationary variables, we
 % use the first order approximation of the rational expectation solution.