diff --git a/roles/prometheus/templates/prometheus/prometheus.yml.j2 b/roles/prometheus/templates/prometheus/prometheus.yml.j2
index 75c8be9..937f64f 100644
--- a/roles/prometheus/templates/prometheus/prometheus.yml.j2
+++ b/roles/prometheus/templates/prometheus/prometheus.yml.j2
@@ -8,7 +8,7 @@ global:
   # Attach these labels to any time series or alerts when communicating with
   # external systems (federation, remote storage, Alertmanager).
   external_labels:
-      monitor: 'example'
+      federated_instance: '{{ inventory_hostname }}'
 
 # Alertmanager configuration
 # Use prometheus alertmanager installed on the same machine