diff --git a/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet b/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet
index c745f1c46f47af07e2b0218ffc3bb35b1e04dab1..82c4fc90823aa6bfa29659e16c0be842967d6141 100644
--- a/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet
+++ b/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet
@@ -391,6 +391,7 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
           },
         },
         spec: {
+          jobLabel: 'k8s-app',
           selector: {
             matchLabels: {
               'k8s-app': 'kube-dns',