diff --git a/matlab/sim1_purely_backward.m b/matlab/sim1_purely_backward.m
index f5a47dfc7b74e3c68d3f53a00c259552b365fd2e..b6b02973bb8fd3d7603cf13d450d2e92d088a012 100644
--- a/matlab/sim1_purely_backward.m
+++ b/matlab/sim1_purely_backward.m
@@ -46,7 +46,7 @@ function sim1_purely_backward()
                               M_.endo_nbr, 1, options_.gstep, ...
                               options_.solve_tolf,options_.solve_tolx, ...
                               options_.simul.maxit,options_.debug,oo_.exo_simul, ...
-                              M_.params, oo_.steady_state, it);
+                              M_.params, oo_.steady_state, it+M_.maximum_lag-1);
 
         if check
             oo_.deterministic_simulation.status = 0;