diff --git a/matlab/make_ex_.m b/matlab/make_ex_.m
index 492a948db..7aea8071e 100644
--- a/matlab/make_ex_.m
+++ b/matlab/make_ex_.m
@@ -31,8 +31,6 @@ function make_ex_
 
 global M_ options_ oo_ ex0_ ex_det0_
 
-options_ = set_default_option(options_,'periods',0);
-
 if isempty(oo_.exo_steady_state)
     oo_.exo_steady_state = zeros(M_.exo_nbr,1);
 end
diff --git a/matlab/make_y_.m b/matlab/make_y_.m
index 345bb7986..bd048e875 100644
--- a/matlab/make_y_.m
+++ b/matlab/make_y_.m
@@ -31,8 +31,6 @@ function make_y_
 
 global M_ options_ oo_ ys0_ 
 
-options_ = set_default_option(options_,'periods',0);
-
 if isempty(oo_.steady_state)
     oo_.steady_state = zeros(M_.endo_nbr,1);
 end