cluster/kube: fix typo
diff --git a/cluster/kube/cluster.jsonnet b/cluster/kube/cluster.jsonnet
index aa484dc..6b64240 100644
--- a/cluster/kube/cluster.jsonnet
+++ b/cluster/kube/cluster.jsonnet
@@ -23,7 +23,7 @@
             },
         ],
     },
-    crbAPISerber: kube.ClusterRoleBinding("system:kube-apiserver") {
+    crbAPIServer: kube.ClusterRoleBinding("system:kube-apiserver") {
         roleRef: {
             apiGroup: "rbac.authorization.k8s.io",
             kind: "ClusterRole",