diff --git a/matlab/perfect-foresight-models/make_ex_.m b/matlab/perfect-foresight-models/make_ex_.m
index 4878c49e3..39bff6804 100644
--- a/matlab/perfect-foresight-models/make_ex_.m
+++ b/matlab/perfect-foresight-models/make_ex_.m
@@ -3,12 +3,12 @@ function oo_ = make_ex_(M_, options_, oo_)
 % Forms oo_.exo_simul and oo_.exo_det_simul
 %
 % INPUTS
-%   M_:           Dynare model structure
-%   options_:     Dynare options structure
-%   oo_:          Dynare results structure
+% - M_           [struct]   Dynare model structure
+% - options_     [struct]   Dynare options structure
+% - oo_          [struct]   Dynare results structure
 %
 % OUTPUTS
-%   oo_:          Dynare results structure
+% - oo_          [struct]   Updated dynare results structure
 
 % Copyright (C) 1996-2020 Dynare Team
 %
diff --git a/matlab/perfect-foresight-models/make_y_.m b/matlab/perfect-foresight-models/make_y_.m
index d36dd746c..4b3ece6a5 100644
--- a/matlab/perfect-foresight-models/make_y_.m
+++ b/matlab/perfect-foresight-models/make_y_.m
@@ -1,22 +1,16 @@
-function oo_=make_y_(M_,options_,oo_)
-% function oo_=make_y_(M_,options_,oo_)
+function oo_=make_y_(M_, options_, oo_)
+
 % forms oo_.endo_simul as guess values for deterministic simulations
 %
 % INPUTS
-%   M_:           Dynare model structure
-%   options_:     Dynare options structure
-%   oo_:          Dynare results structure
+% - M_          [struct]   Dynare model structure
+% - options_    [struct]   Dynare options structure
+% - oo_         [struct]   Dynare results structure
 %
 % OUTPUTS
-%   oo_:          Dynare results structure
-%
-% ALGORITHM
-%   ...
-% SPECIAL REQUIREMENTS
-%   none
-%
+% - oo_         [struct]   Updated dynare results structure
 
-% Copyright (C) 1996-2019 Dynare Team
+% Copyright (C) 1996-2020 Dynare Team
 %
 % This file is part of Dynare.
 %