diff --git a/sample-config/pgmon-metrics.yml b/sample-config/pgmon-metrics.yml
index 0b07909..38d3b5f 100644
--- a/sample-config/pgmon-metrics.yml
+++ b/sample-config/pgmon-metrics.yml
@@ -18,6 +18,7 @@ metrics:
     query:
       0: >
         SELECT host(client_addr) || '_' || regexp_replace(application_name, '[ ,]', '_', 'g') AS repid,
+               application_name,
                client_addr,
                state
         FROM pg_stat_replication