'Roles and Permissions' Code Problem

Hi, I'm looking at the 'Roles and Permissions' video and when I try to add a permission check in the 'boot' function in the 'AuthServiceProvider.php' it gives me the error 'Undefined variable: permission'. I'm using Laravel 5.2

This is the permission check thingy:

foreach ($this->getPermissions() as $permission) {
            $gate->define($permission->name, function ($user) {
                $user->hasRole($permission->roles);
            });
        }       

And here's the getPermissions

protected function getPermissions()
    {
        return Permission::with('roles')->get();
    }