diff --git a/matlab/CheckPath.m b/matlab/CheckPath.m
index 794c2005bb0ab58ed87b74443c6c1fc954a17f68..f32f8fa22998e8f54b6c910beaa3195defcf0814 100644
--- a/matlab/CheckPath.m
+++ b/matlab/CheckPath.m
@@ -12,7 +12,7 @@ function [DirectoryName, info] = CheckPath(type,dname)
 % SPECIAL REQUIREMENTS
 %    none
 
-% Copyright © 2005-2017 Dynare Team
+% Copyright © 2005-2023 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -31,7 +31,7 @@ function [DirectoryName, info] = CheckPath(type,dname)
 
 info = 0;
 
-DirectoryName = [ dname '/' type ];
+DirectoryName = [ dname filesep type ];
 
 if ~isdir(dname)
     % Make sure there isn't a file with the same name, see trac ticket #47
diff --git a/matlab/display_estimation_results_table.m b/matlab/display_estimation_results_table.m
index 92c8a53486289d8bed5d7c91c7ea39f26ddfa14b..4d0b7031a45460e27b5384d4456cae99d6e496ba 100644
--- a/matlab/display_estimation_results_table.m
+++ b/matlab/display_estimation_results_table.m
@@ -174,7 +174,7 @@ if ncn
 end
 
 if any(xparam1(1:nvx+nvn)<0)
-    warning('Some estimated standard deviations are negative. Dynare internally works with variances so that the sign does not matter. Nevertheless, it is recommended to impose either prior restrictions (Bayesian Estimation) or a lower bound (ML) to assure positive values.')
+    warning(sprintf('Some estimated standard deviations are negative.\n         Dynare internally works with variances so that the sign does not matter.\n         Nevertheless, it is recommended to impose either prior restrictions (Bayesian Estimation)\n         or a lower bound (ML) to assure positive values.'))
 end
 
 OutputDirectoryName = CheckPath('Output',M_.dname);
diff --git a/matlab/set_prior.m b/matlab/set_prior.m
index bc4fff302d56c8aa5209896ef9c3979f727607e7..635568dc861804863848ddc499ba25568e2b880e 100644
--- a/matlab/set_prior.m
+++ b/matlab/set_prior.m
@@ -5,7 +5,7 @@ function [xparam1, estim_params_, bayestopt_, lb, ub, M_]=set_prior(estim_params
 % INPUTS
 %    o estim_params_    [structure] characterizing parameters to be estimated.
 %    o M_               [structure] characterizing the model.
-%    o options_         [structure]
+%    o options_         [structure] characterizing the options.
 %
 % OUTPUTS
 %    o xparam1          [double]    vector of parameters to be estimated (initial values)
@@ -18,7 +18,7 @@ function [xparam1, estim_params_, bayestopt_, lb, ub, M_]=set_prior(estim_params
 % SPECIAL REQUIREMENTS
 %    None
 
-% Copyright © 2003-2018 Dynare Team
+% Copyright © 2003-2023 Dynare Team
 %
 % This file is part of Dynare.
 %