$this->user->nickname),
$action == 'usergroups',
'nav_usergroups');
- if ($this->user->id == $cur->id) {
+ if (!is_null($cur) && $this->user->id === $cur->id) {
$this->out->menuItem(common_local_url('invite'),
_('Invite'),
sprintf(_('Invite friends and colleagues to join you on %s'),