diff --git a/ceph-client/values.yaml b/ceph-client/values.yaml
index 631f098ad..f330c2bd5 100644
--- a/ceph-client/values.yaml
+++ b/ceph-client/values.yaml
@@ -313,6 +313,8 @@ ceph_mgr_enabled_modules:
 # of key/value. Refer to the doc
 # above for more info. For example:
 #ceph_mgr_modules_config:
+#  prometheus:
+#    server_port: 9283
 #  dashboard:
 #    port: 7000
 #  localpool: