diff --git a/cluster/gce/gci/configure-helper.sh b/cluster/gce/gci/configure-helper.sh
index 58ba60f4b5d..a9d0da9aa9f 100644
--- a/cluster/gce/gci/configure-helper.sh
+++ b/cluster/gce/gci/configure-helper.sh
@@ -1898,7 +1898,7 @@ function start-kube-controller-manager {
     params+=" --flex-volume-plugin-dir=${VOLUME_PLUGIN_DIR}"
   fi
   if [[ -n "${CLUSTER_SIGNING_DURATION:-}" ]]; then
-    params+=" --experimental-cluster-signing-duration=$CLUSTER_SIGNING_DURATION"
+    params+=" --cluster-signing-duration=$CLUSTER_SIGNING_DURATION"
   fi
   # Disable using HPA metrics REST clients if metrics-server isn't enabled,
   # or if we want to explicitly disable it by setting HPA_USE_REST_CLIENT.
diff --git a/cmd/kube-controller-manager/app/options/csrsigningcontroller.go b/cmd/kube-controller-manager/app/options/csrsigningcontroller.go
index 251de045c99..f9477449cc7 100644
--- a/cmd/kube-controller-manager/app/options/csrsigningcontroller.go
+++ b/cmd/kube-controller-manager/app/options/csrsigningcontroller.go
@@ -45,7 +45,9 @@ func (o *CSRSigningControllerOptions) AddFlags(fs *pflag.FlagSet) {
 
 	fs.StringVar(&o.ClusterSigningCertFile, "cluster-signing-cert-file", o.ClusterSigningCertFile, "Filename containing a PEM-encoded X509 CA certificate used to issue cluster-scoped certificates")
 	fs.StringVar(&o.ClusterSigningKeyFile, "cluster-signing-key-file", o.ClusterSigningKeyFile, "Filename containing a PEM-encoded RSA or ECDSA private key used to sign cluster-scoped certificates")
+	fs.DurationVar(&o.ClusterSigningDuration.Duration, "cluster-signing-duration", o.ClusterSigningDuration.Duration, "The length of duration signed certificates will be given.")
 	fs.DurationVar(&o.ClusterSigningDuration.Duration, "experimental-cluster-signing-duration", o.ClusterSigningDuration.Duration, "The length of duration signed certificates will be given.")
+	fs.MarkDeprecated("experimental-cluster-signing-duration", "use --cluster-signing-duration")
 }
 
 // ApplyTo fills up CSRSigningController config with options.
diff --git a/cmd/kube-controller-manager/app/options/options_test.go b/cmd/kube-controller-manager/app/options/options_test.go
index 3cf81f70d2c..5240d15d510 100644
--- a/cmd/kube-controller-manager/app/options/options_test.go
+++ b/cmd/kube-controller-manager/app/options/options_test.go
@@ -88,7 +88,7 @@ var args = []string{
 	"--enable-garbage-collector=false",
 	"--enable-hostpath-provisioner=true",
 	"--enable-taint-manager=false",
-	"--experimental-cluster-signing-duration=10h",
+	"--cluster-signing-duration=10h",
 	"--flex-volume-plugin-dir=/flex-volume-plugin",
 	"--horizontal-pod-autoscaler-downscale-delay=2m",
 	"--horizontal-pod-autoscaler-sync-period=45s",