diff --git a/skylib/k8s.bzl b/skylib/k8s.bzl
index e80bd977..2b5aa5b0 100644
--- a/skylib/k8s.bzl
+++ b/skylib/k8s.bzl
@@ -627,7 +627,6 @@ k8s_test_setup = rule(
             default = Label("@k8s_test//:kubeconfig"),
             providers = [KubeconfigInfo],
             allow_single_file = True,
-            mandatory = True,
         ),
         "kubectl": attr.label(
             default = Label("@k8s_test//:kubectl"),