diff --git a/hardware/pdu/apc/snmp/mode/outlet.pm b/hardware/pdu/apc/snmp/mode/outlet.pm
index 015356ace..7fb1ae8a1 100644
--- a/hardware/pdu/apc/snmp/mode/outlet.pm
+++ b/hardware/pdu/apc/snmp/mode/outlet.pm
@@ -154,7 +154,8 @@ sub run {
 
         $self->{output}->output_add(long_msg => sprintf("Outlet '%s' state is '%s' [instance: %s, bank : %s, phase : %s, load: %s]", 
                                     $result->{rPDUOutletStatusOutletName}, $result->{rPDUOutletStatusOutletState}, 
-                                    $instance, $result->{rPDUOutletStatusOutletBank}, $result->{rPDUOutletStatusOutletPhase}, $result->{rPDUOutletStatusLoad}));
+                                    $instance, $result->{rPDUOutletStatusOutletBank}, $result->{rPDUOutletStatusOutletPhase}, 
+                                    defined($result->{rPDUOutletStatusLoad}) ? $result->{rPDUOutletStatusLoad} : '-'));
         my $exit = $self->get_severity(section => 'outlet', instance => $instance, value => $result->{rPDUOutletStatusOutletState});
         if (!$self->{output}->is_status(value => $exit, compare => 'ok', litteral => 1)) {
             $self->{output}->output_add(severity => $exit,