diff --git a/jsonnet/kube-prometheus/addons/all-namespaces.libsonnet b/jsonnet/kube-prometheus/addons/all-namespaces.libsonnet
index 568ba47630..433009bd2e 100644
--- a/jsonnet/kube-prometheus/addons/all-namespaces.libsonnet
+++ b/jsonnet/kube-prometheus/addons/all-namespaces.libsonnet
@@ -2,6 +2,11 @@
   prometheus+: {
     clusterRole+: {
       rules+: [
+        {
+          apiGroups: ['discovery.k8s.io'],
+          resources: ['endpointslices'],
+          verbs: ['get', 'list', 'watch'],
+        },
         {
           apiGroups: [''],
           resources: ['services', 'endpoints', 'pods'],