diff --git a/cluster/gke/util.sh b/cluster/gke/util.sh
index f2c7eea5a4..8136118259 100755
--- a/cluster/gke/util.sh
+++ b/cluster/gke/util.sh
@@ -303,5 +303,5 @@ function kube-down() {
   echo "... in kube-down()" >&2
   detect-project >&2
   "${GCLOUD}" alpha container clusters delete --project="${PROJECT}" \
-    --zone="${ZONE}" "${CLUSTER_NAME} --quiet"
+    --zone="${ZONE}" "${CLUSTER_NAME}" --quiet
 }