How to load apparmor profile for a service that runs in systemd's user space

I have been trying to load apparmor profile for a service that runs in systemd's user instance. I have two service files sample.service, for the process and another sample-profile-loader.service which loads its app armor profile usr.bin.Sample. The apparmor profile is placed in /lib/systemd/system and the process's service file is placed in /usr/lib/systemd/user. Both services are enabled. [Unit] # sample-profile-loader.service Before=sample.service [Service] Type=oneshot ExecStart=/use/bin/apparmor-loader.sh /etc/apparmor.d/usr.bin.sample [Install] Wanted by=multi-user.target [Unit] # sample.service Requires=sample-profile-loader.service After=sample-profile-loader.service [Service] Type=simple ExecStart=/usr/bin/sample [Install] WantedBy=multi-user.target After first boot, when I check aa-status the profile is loaded. But when I do a systemctl restart sample.service --user, I get an error message. "Failed to start sample.service. Unit sample-profile-loader.service failed to load. No such file or directory" I have been going through Google for a solution to this. But haven't found one yet. It would be really good if you can give me any suggestion.