diff --git a/charts/cloudnative-pg/values.yaml b/charts/cloudnative-pg/values.yaml
index 9faf8ec0c..8b7fb4e73 100644
--- a/charts/cloudnative-pg/values.yaml
+++ b/charts/cloudnative-pg/values.yaml
@@ -244,6 +244,7 @@ monitoringQueriesConfigMap:
             description: "Time at which postgres started (based on epoch)"
 
     pg_replication:
+      primary: true
       query: "SELECT CASE WHEN NOT pg_catalog.pg_is_in_recovery()
               THEN 0
               ELSE GREATEST (0,