toolbox reuired by p-code not included in standalone executable

I've compiled a p-code using mcc. All goes well except that the toolbox is not found by the executable.

The function is toolbox\map\map\makerefmat.m from mapping toolbox.

I believe this toolbox is not excluded for inclusion since it's in this list: https://ch.mathworks.com/products/compiler/supported/compiler_support.html

and only maptool and mapview are excluded.

That being said, when the Matlab runtime is installed, this toolbox is NOT present.

I thought mcc would find the code dependencies by itself, but given that all code is p-coded, it might be unable to do so. Especially because I had to include the directory with the rest of the p-coded functions with the -a option.

How can I include this toolbox and/or help mcc discover them?