diff --git a/centreon/plugins/output.pm b/centreon/plugins/output.pm
index 0779d1226..045ad4b6d 100644
--- a/centreon/plugins/output.pm
+++ b/centreon/plugins/output.pm
@@ -41,6 +41,7 @@ sub new {
                                   "filter-perfdata:s"       => { name => 'filter_perfdata' },
                                   "change-perfdata:s@"      => { name => 'change_perfdata' },
                                   "verbose"                 => { name => 'verbose' },
+                                  "debug"                   => { name => 'debug' },
                                   "opt-exit:s"              => { name => 'opt_exit', default => 'unknown' },
                                   "output-xml"              => { name => 'output_xml' },
                                   "output-json"             => { name => 'output_json' },
@@ -156,6 +157,7 @@ sub output_add {
     my %args = (
                 severity => 'OK',
                 separator => ' - ',
+                debug => 0,
                 short_msg => undef,
                 long_msg => undef
                 );
@@ -172,7 +174,8 @@ sub output_add {
         push @{$self->{global_short_outputs}->{uc($options->{severity})}}, $options->{short_msg};
         $self->set_status(exit_litteral => $options->{severity});
     }
-    if (defined($options->{long_msg})) {
+    if (defined($options->{long_msg}) && 
+        ($options->{debug} == 0 || defined($self->{option_results}->{debug}))) {
         chomp $options->{long_msg};
         push @{$self->{global_long_output}}, $options->{long_msg};
     }
@@ -427,6 +430,7 @@ sub display {
     my $nolabel = defined($options{nolabel}) ? 1 : 0;
     my $force_ignore_perfdata = (defined($options{force_ignore_perfdata}) && $options{force_ignore_perfdata} == 1) ? 1 : 0;
     my $force_long_output = (defined($options{force_long_output}) && $options{force_long_output} == 1) ? 1 : 0;
+    $force_long_output = 1 if (defined($self->{option_results}->{debug}));
 
     if (defined($self->{option_results}->{output_xml})) {
         $self->create_xml_document();
@@ -748,6 +752,10 @@ Output class
 
 Display long output.
 
+=item B<--debug>
+
+Display also debug messages.
+
 =item B<--filter-perfdata>
 
 Filter perfdata that match the regexp.
diff --git a/network/alcatel/oxe/snmp/mode/domainusage.pm b/network/alcatel/oxe/snmp/mode/domainusage.pm
index b7f664da4..72bc90ec7 100644
--- a/network/alcatel/oxe/snmp/mode/domainusage.pm
+++ b/network/alcatel/oxe/snmp/mode/domainusage.pm
@@ -252,7 +252,7 @@ sub manage_selection {
         my $result = $self->{snmp}->map_instance(mapping => $mapping, results => $self->{results}, instance => $instance);
         if (defined($self->{option_results}->{filter_domain}) && $self->{option_results}->{filter_domain} ne '' &&
             $instance !~ /$self->{option_results}->{filter_domain}/) {
-            $self->{output}->output_add(long_msg => "Skipping  '" . $instance . "': no matching filter.");
+            $self->{output}->output_add(long_msg => "Skipping  '" . $instance . "': no matching filter.", debug => 1);
             next;
         }