diff --git a/matlab/datatomfile.m b/matlab/datatomfile.m
index 4cff2b26a..3b50ab6b5 100644
--- a/matlab/datatomfile.m
+++ b/matlab/datatomfile.m
@@ -17,7 +17,7 @@ function datatomfile (s, var_list, names)
 % provided, all the variables as defined in M_.endo_names will be saved in
 % the generated m file.
 
-% Copyright (C) 2001-2018 Dynare Team
+% Copyright (C) 2001-2020 Dynare Team
 %
 % This file is part of Dynare.
 %
@@ -68,8 +68,7 @@ for i=1:n
         ivar(i) = i_tmp;
     end
 end
-stack = dbstack;
-fprintf(fid,'%% Dataset generated by %s.\n',stack(2).file);
+fprintf(fid,'%% Dataset generated by %s.mod\n',M_.fname);
 fprintf(fid,['%% ' datestr(now,0) '\n']);
 % Save the selected data.
 for i = 1:n