Specify which terminal to use for File Watcher

I have my webstorm projets located in WSL (Windows Subsystem for Linux) directory. For my terminal I use wsl. 

At the moment, File Watcher makes use of cmd.exe; this is problematic since cmd.exe isn't able to cd into the wsl directory in which the project resides. Thus my question becomes: How do I specify that File Watcher should use WSL as opposed to cmd.exe?