diff --git a/configs-examples/default.yaml b/configs-examples/default.yaml
index adb114d..871de56 100644
--- a/configs-examples/default.yaml
+++ b/configs-examples/default.yaml
@@ -41,7 +41,7 @@
 sensors:
    online: true
    roles_mapping:
-#       testnode: system-cpu, block-io, net-io
+       testnode: system-cpu, block-io, net-io
        ceph-osd:
             system-cpu: ".*"
             block-io: ".*"