diff --git a/jsonnet/kube-prometheus/alerts/general.libsonnet b/jsonnet/kube-prometheus/alerts/general.libsonnet
index 4f9491562002ad2f71f0adf85007474854a9d2f6..79eba7d99c7b45a662a950ba2aa296db20669454 100644
--- a/jsonnet/kube-prometheus/alerts/general.libsonnet
+++ b/jsonnet/kube-prometheus/alerts/general.libsonnet
@@ -7,7 +7,7 @@
           {
             alert: 'TargetDown',
             annotations: {
-              message: '{{ $value }}% of the {{ $labels.job }} targets are down.',
+              message: '{{ printf "%.4g" $value }}% of the {{ $labels.job }} targets are down.',
             },
             expr: '100 * (count(up == 0) BY (job, namespace, service) / count(up) BY (job, namespace, service)) > 10',
             'for': '10m',
diff --git a/manifests/prometheus-rules.yaml b/manifests/prometheus-rules.yaml
index afcd6b0943f11f479b0342c7b7e68b4cfb224f6a..f6413d4c8d5afa553b4278077db1ea215c866f98 100644
--- a/manifests/prometheus-rules.yaml
+++ b/manifests/prometheus-rules.yaml
@@ -1123,7 +1123,8 @@ spec:
     rules:
     - alert: TargetDown
       annotations:
-        message: '{{ $value }}% of the {{ $labels.job }} targets are down.'
+        message: '{{ printf "%.4g" $value }}% of the {{ $labels.job }} targets are
+          down.'
       expr: 100 * (count(up == 0) BY (job, namespace, service) / count(up) BY (job,
         namespace, service)) > 10
       for: 10m