diff --git a/apps/pvx/restapi/mode/httphits.pm b/apps/pvx/restapi/mode/httphits.pm
index d4f46fe70..59963a104 100644
--- a/apps/pvx/restapi/mode/httphits.pm
+++ b/apps/pvx/restapi/mode/httphits.pm
@@ -25,6 +25,12 @@ use base qw(centreon::plugins::templates::counter);
 use strict;
 use warnings;
 
+sub prefix_instances_output {
+    my ($self, %options) = @_;
+
+    return $options{instance_value}->{instance_label} . " '" . $options{instance_value}->{key} . "' ";
+}
+
 sub set_counters {
     my ($self, %options) = @_;
 
@@ -33,42 +39,36 @@ sub set_counters {
     ];
     
     $self->{maps_counters}->{instances} = [
-        { label => 'ratio', set => {
+        { label => 'ratio', nlabel => 'http.hits.percentage', set => {
                 key_values => [ { name => 'ratio' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'Ratio: %.2f',
                 perfdatas => [
                     { label => 'ratio', template => '%.2f',
-                      min => 0, label_extra_instance => 1, instance_use => 'key' },
-                ],
+                      min => 0, label_extra_instance => 1, instance_use => 'key' }
+                ]
             }
         },
-        { label => 'hits-error', set => {
+        { label => 'hits-error', nlabel => 'http.hits.error.hitspersecond', set => {
                 key_values => [ { name => 'error_hits' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'Hits Error: %.3f hits/s',
                 perfdatas => [
                     { label => 'hits_error', template => '%.3f',
-                      min => 0, unit => 'hits/s', label_extra_instance => 1, instance_use => 'key' },
-                ],
+                      min => 0, unit => 'hits/s', label_extra_instance => 1, instance_use => 'key' }
+                ]
             }
         },
-        { label => 'hits', set => {
+        { label => 'hits', nlabel => 'http.hits.hitspersecond', set => {
                 key_values => [ { name => 'hits' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'Hits: %.3f hits/s',
                 perfdatas => [
                     { label => 'hits', template => '%.3f',
-                      min => 0, unit => 'hits/s', label_extra_instance => 1, instance_use => 'key' },
-                ],
+                      min => 0, unit => 'hits/s', label_extra_instance => 1, instance_use => 'key' }
+                ]
             }
-        },
+        }
     ];
 }
 
-sub prefix_instances_output {
-    my ($self, %options) = @_;
-
-    return $options{instance_value}->{instance_label} . " '" . $options{instance_value}->{key} . "' ";
-}
-
 sub new {
     my ($class, %options) = @_;
     my $self = $class->SUPER::new(package => __PACKAGE__, %options);
diff --git a/apps/pvx/restapi/mode/networkconnection.pm b/apps/pvx/restapi/mode/networkconnection.pm
index f1097b05c..bf676ce52 100644
--- a/apps/pvx/restapi/mode/networkconnection.pm
+++ b/apps/pvx/restapi/mode/networkconnection.pm
@@ -25,6 +25,12 @@ use base qw(centreon::plugins::templates::counter);
 use strict;
 use warnings;
 
+sub prefix_instances_output {
+    my ($self, %options) = @_;
+
+    return $options{instance_value}->{instance_label} . " '" . $options{instance_value}->{key} . "' ";
+}
+
 sub set_counters {
     my ($self, %options) = @_;
 
@@ -33,51 +39,45 @@ sub set_counters {
     ];
     
     $self->{maps_counters}->{instances} = [
-        { label => 'ratio', set => {
+        { label => 'ratio', nlabel => 'connections.ratio.percentage.', set => {
                 key_values => [ { name => 'syns_ratio' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'Ratio: %.2f',
                 perfdatas => [
                     { label => 'ratio', template => '%.2f',
-                      min => 0, label_extra_instance => 1, instance_use => 'key' },
-                ],
+                      min => 0, label_extra_instance => 1, instance_use => 'key' }
+                ]
             }
         },
-        { label => 'attempt', set => {
+        { label => 'attempt', nlabel => 'connections.attempt.connectionspersecond', set => {
                 key_values => [ { name => 'syns' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'Connections Attempts: %.2f conn/s',
                 perfdatas => [
                     { label => 'attempt', template => '%.2f',
-                      min => 0, unit => 'connections/s', label_extra_instance => 1, instance_use => 'key' },
-                ],
+                      min => 0, unit => 'connections/s', label_extra_instance => 1, instance_use => 'key' }
+                ]
             }
         },
-        { label => 'successful', set => {
+        { label => 'successful', nlabel => 'connections.successful.connectionspersecond', set => {
                 key_values => [ { name => 'ct_count' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'Successful Connections: %.2f conn/s',
                 perfdatas => [
                     { label => 'successful', template => '%.2f',
-                      min => 0, unit => 'connections/s', label_extra_instance => 1, instance_use => 'key' },
-                ],
+                      min => 0, unit => 'connections/s', label_extra_instance => 1, instance_use => 'key' }
+                ]
             }
         },
-        { label => 'connection-time', set => {
+        { label => 'connection-time', nlabel => 'connection.time.millisecond', set => {
                 key_values => [ { name => 'ct' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'Average Connection Time: %.3f ms',
                 perfdatas => [
                     { label => 'connection_time', template => '%.3f',
-                      min => 0, unit => 'ms', label_extra_instance => 1, instance_use => 'key' },
-                ],
+                      min => 0, unit => 'ms', label_extra_instance => 1, instance_use => 'key' }
+                ]
             }
-        },
+        }
     ];
 }
 
-sub prefix_instances_output {
-    my ($self, %options) = @_;
-
-    return $options{instance_value}->{instance_label} . " '" . $options{instance_value}->{key} . "' ";
-}
-
 sub new {
     my ($class, %options) = @_;
     my $self = $class->SUPER::new(package => __PACKAGE__, %options);
diff --git a/apps/pvx/restapi/mode/networktraffic.pm b/apps/pvx/restapi/mode/networktraffic.pm
index 68c9a4766..b6705ff37 100644
--- a/apps/pvx/restapi/mode/networktraffic.pm
+++ b/apps/pvx/restapi/mode/networktraffic.pm
@@ -34,7 +34,7 @@ sub set_counters {
     ];
 
     $self->{maps_counters}->{global} = [
-        { label => 'total-traffic', set => {
+        { label => 'total-traffic', nlabel => 'traffic.total.bitspersecond', set => {
                 key_values => [ { name => 'total_traffic' } ],
                 output_template => 'Total Traffic: %.2f %s/s',
                 output_change_bytes => 2,
@@ -43,7 +43,7 @@ sub set_counters {
                 ]
             }
         },
-        { label => 'total-server-traffic', set => {
+        { label => 'total-server-traffic', nlabel => 'traffic.server.total.bitspersecond', set => {
                 key_values => [ { name => 'total_server_traffic' } ],
                 output_template => 'Total Server Traffic: %.2f %s/s',
                 output_change_bytes => 2,
@@ -52,7 +52,7 @@ sub set_counters {
                 ]
             }
         },
-        { label => 'total-client-traffic', set => {
+        { label => 'total-client-traffic', nlabel => 'traffic.client.total.bitspersecond', set => {
                 key_values => [ { name => 'total_client_traffic' } ],
                 output_template => 'Total Client Traffic: %.2f %s/s',
                 output_change_bytes => 2,
@@ -64,7 +64,7 @@ sub set_counters {
     ];
 
     $self->{maps_counters}->{instances} = [
-        { label => 'traffic', set => {
+        { label => 'traffic', nlabel => 'traffic.bitspersecond', set => {
                 key_values => [ { name => 'traffic' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'Traffic: %.2f %s/s',
                 output_change_bytes => 2,
@@ -74,7 +74,7 @@ sub set_counters {
                 ]
             }
         },
-        { label => 'server-traffic', set => {
+        { label => 'server-traffic', nlabel => 'traffic.server.bitspersecond', set => {
                 key_values => [ { name => 'server_traffic' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'Server Traffic: %.2f %s/s',
                 output_change_bytes => 2,
@@ -84,7 +84,7 @@ sub set_counters {
                 ]
             }
         },
-        { label => 'client-traffic', set => {
+        { label => 'client-traffic', nlabel => 'traffic.client.bitspersecond', set => {
                 key_values => [ { name => 'client_traffic' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'Client Traffic: %.2f %s/s',
                 output_change_bytes => 2,
diff --git a/apps/pvx/restapi/mode/networkuserexperience.pm b/apps/pvx/restapi/mode/networkuserexperience.pm
index 8640de609..404270f82 100644
--- a/apps/pvx/restapi/mode/networkuserexperience.pm
+++ b/apps/pvx/restapi/mode/networkuserexperience.pm
@@ -25,6 +25,12 @@ use base qw(centreon::plugins::templates::counter);
 use strict;
 use warnings;
 
+sub prefix_instances_output {
+    my ($self, %options) = @_;
+
+    return $options{instance_value}->{instance_label} . " '" . $options{instance_value}->{key} . "' ";
+}
+
 sub set_counters {
     my ($self, %options) = @_;
 
@@ -33,7 +39,7 @@ sub set_counters {
     ];
     
     $self->{maps_counters}->{instances} = [
-        { label => 'time', set => {
+        { label => 'time', nlabel => 'enduser.experience.second', set => {
                 key_values => [ { name => 'user_experience' }, { name => 'key' }, { name => 'instance_label' } ],
                 output_template => 'End-User Experience: %.3f s',
                 perfdatas => [
@@ -45,12 +51,6 @@ sub set_counters {
     ];
 }
 
-sub prefix_instances_output {
-    my ($self, %options) = @_;
-
-    return $options{instance_value}->{instance_label} . " '" . $options{instance_value}->{key} . "' ";
-}
-
 sub new {
     my ($class, %options) = @_;
     my $self = $class->SUPER::new(package => __PACKAGE__, %options);
diff --git a/apps/pvx/restapi/plugin.pm b/apps/pvx/restapi/plugin.pm
index 659fe42ff..3d74954d3 100644
--- a/apps/pvx/restapi/plugin.pm
+++ b/apps/pvx/restapi/plugin.pm
@@ -30,12 +30,12 @@ sub new {
     bless $self, $class;
 
     $self->{version} = '0.1';
-    %{$self->{modes}} = (
+    $self->{modes} => {
         'http-hits'                 => 'apps::pvx::restapi::mode::httphits',
         'network-connection'        => 'apps::pvx::restapi::mode::networkconnection',
         'network-user-experience'   => 'apps::pvx::restapi::mode::networkuserexperience',
         'network-traffic'           => 'apps::pvx::restapi::mode::networktraffic',
-    );
+    };
 
     $self->{custom_modes}{api} = 'apps::pvx::restapi::custom::api';
     return $self;