diff --git a/matlab/missing/mex/num_procs/num_procs.m b/matlab/missing/mex/num_procs/num_procs.m
new file mode 100644
index 000000000..832841c83
--- /dev/null
+++ b/matlab/missing/mex/num_procs/num_procs.m
@@ -0,0 +1,29 @@
+function num_logical_cores=num_procs
+% function num_logical_cores=num_procs
+% Dummy function providing fake number of cores as m-file do not use
+% this functionality
+%
+% OUTPUTS
+%    num_logical_cores    [double]     number of logical cores
+%
+% SPECIAL REQUIREMENTS
+%    none
+
+% Copyright (C) 2020 Dynare Team
+%
+% This file is part of Dynare.
+%
+% Dynare is free software: you can redistribute it and/or modify
+% it under the terms of the GNU General Public License as published by
+% the Free Software Foundation, either version 3 of the License, or
+% (at your option) any later version.
+%
+% Dynare is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
+
+num_logical_cores=1;
\ No newline at end of file