diff --git a/jsonnet/kube-prometheus/components/prometheus-adapter.libsonnet b/jsonnet/kube-prometheus/components/prometheus-adapter.libsonnet
index 4a4d6850..8ff8b3a5 100644
--- a/jsonnet/kube-prometheus/components/prometheus-adapter.libsonnet
+++ b/jsonnet/kube-prometheus/components/prometheus-adapter.libsonnet
@@ -240,7 +240,7 @@ function(params) {
         periodSeconds: 5,
         failureThreshold: 5,
       },
-      ports: [{ containerPort: 6443 }],
+      ports: [{ containerPort: 6443, name: 'https' }],
       volumeMounts: [
         { name: 'tmpfs', mountPath: '/tmp', readOnly: false },
         { name: 'volume-serving-cert', mountPath: '/var/run/serving-cert', readOnly: false },
diff --git a/manifests/prometheusAdapter-deployment.yaml b/manifests/prometheusAdapter-deployment.yaml
index 9ff5a333..003c6e45 100644
--- a/manifests/prometheusAdapter-deployment.yaml
+++ b/manifests/prometheusAdapter-deployment.yaml
@@ -49,6 +49,7 @@ spec:
         name: prometheus-adapter
         ports:
         - containerPort: 6443
+          name: https
         readinessProbe:
           failureThreshold: 5
           httpGet: