diff --git a/cluster/gce/util.sh b/cluster/gce/util.sh
index 389c3157349..672b6ecb1ef 100755
--- a/cluster/gce/util.sh
+++ b/cluster/gce/util.sh
@@ -614,7 +614,7 @@ function kube-up() {
   if [[ ${KUBE_USE_EXISTING_MASTER:-} == "true" ]]; then
     parse-master-env
     create-nodes
-  elif [[ ${KUBE_EXPERIMENTAL_REPLICATE_EXISTING_MASTER:-} == "true" ]]; then
+  elif [[ ${KUBE_REPLICATE_EXISTING_MASTER:-} == "true" ]]; then
     if  [[ "${MASTER_OS_DISTRIBUTION}" != "gci" && "${MASTER_OS_DISTRIBUTION}" != "debian" ]]; then
       echo "Master replication supported only for gci and debian"
       return 1
diff --git a/hack/e2e-internal/e2e-add-master.sh b/hack/e2e-internal/e2e-add-master.sh
index bdf25868a9b..7f04f841661 100755
--- a/hack/e2e-internal/e2e-add-master.sh
+++ b/hack/e2e-internal/e2e-add-master.sh
@@ -16,7 +16,7 @@
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
 
-export KUBE_EXPERIMENTAL_REPLICATE_EXISTING_MASTER=true
+export KUBE_REPLICATE_EXISTING_MASTER=true
 
 source "${KUBE_ROOT}/hack/e2e-internal/e2e-up.sh"