diff --git a/apps/lync/2013/mssql/mode/sessionstypes.pm b/apps/lync/2013/mssql/mode/sessionstypes.pm
index ea69d4c54..2544f9302 100644
--- a/apps/lync/2013/mssql/mode/sessionstypes.pm
+++ b/apps/lync/2013/mssql/mode/sessionstypes.pm
@@ -104,6 +104,17 @@ sub set_counters {
             }
         },
     ];
+    $self->{maps_counters}->{app_invite} = [
+        { label => 'app-invite', set => {
+                key_values => [ { name => 'value' } ],
+                output_template => 'App Invite : %d',
+                perfdatas => [
+                    { label => 'app_invite', value => 'value_absolute', template => '%d', 
+                      unit => 'sessions', min => 0, label_extra_instance => 0 },
+                ],
+            }
+        },
+    ];
 
 }