Ipmi.pm does not load Net::IP at the right place

[Mon Mar 25 19:18:45 2013][debug] Running Ocsinventory::Agent::Backend::OS::Generic::Ipmi
[Mon Mar 25 19:18:46 2013][debug] runWithTimeout(): unexpected error: Undefined subroutine &Ocsinventory::Agent::Backend::OS::Generic::Ipmi::ip_iptobin called at /usr/share/perl5/vendor_perl/Ocsinventory/Agent/Backend/OS/Generic/Ipmi.pm line 55.

from Ipmi.pm:
  my $binip = &ip_iptobin ($ipaddress, 4);
  my $binmask = &ip_iptobin ($ipmask, 4);
  my $binsubnet = $binip & $binmask;
  if (can_load("Net::IP qw(:PROC)")) {
      $ipsubnet = ip_bintoip($binsubnet, 4);
  }

Net::IP needs to be loaded before the ip_iptobin part?