diff --git a/manifests/prometheus-rules.yaml b/manifests/prometheus-rules.yaml
index 422893cbe81afbef020793c326d83a3fba4ecdaa..29cbdf3c297eafd3e65e5d0ec1022917dbbdfeb3 100644
--- a/manifests/prometheus-rules.yaml
+++ b/manifests/prometheus-rules.yaml
@@ -1329,8 +1329,8 @@ spec:
     rules:
     - alert: TargetDown
       annotations:
-        message: '{{ printf "%.4g" $value }}% of the {{ $labels.job }} targets in
-          {{ $labels.namespace }} namespace are down.'
+        message: '{{ printf "%.4g" $value }}% of the {{ $labels.job }}/{{ $labels.service
+          }} targets in {{ $labels.namespace }} namespace are down.'
       expr: 100 * (count(up == 0) BY (job, namespace, service) / count(up) BY (job,
         namespace, service)) > 10
       for: 10m