diff --git a/coreos-config/roles/compose_project/templates/prometheus/prometheus.yml b/coreos-config/roles/compose_project/templates/prometheus/prometheus.yml
index bf4a278..ad6271a 100644
--- a/coreos-config/roles/compose_project/templates/prometheus/prometheus.yml
+++ b/coreos-config/roles/compose_project/templates/prometheus/prometheus.yml
@@ -25,6 +25,11 @@ scrape_configs:
   - targets:
     - localhost:9090
 - job_name: 'service_discovery'
+  metric_relabel_configs:
+    - source_labels:
+        - "container_name"
+      target_label: "instance"
+      action: replace
   file_sd_configs:
     - files:
       - /label_discovery/docker-targets.json