diff --git a/pkg/features/kube_features.go b/pkg/features/kube_features.go
index ab6d4867533..d228da03205 100644
--- a/pkg/features/kube_features.go
+++ b/pkg/features/kube_features.go
@@ -651,6 +651,12 @@ const (
 	// Allows kube-controller-manager to publish kube-root-ca.crt configmap to
 	// every namespace. This feature is a prerequisite of BoundServiceAccountTokenVolume.
 	RootCAConfigMap featuregate.Feature = "RootCAConfigMap"
+
+	// owner: @andrewsykim
+	// alpha: v1.20
+	//
+	// Enable Terminating condition in Endpoint Slices.
+	EndpointSliceTerminatingCondition featuregate.Feature = "EndpointSliceTerminatingCondition"
 )
 
 func init() {
@@ -731,6 +737,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 	IPv6DualStack:                                  {Default: false, PreRelease: featuregate.Alpha},
 	EndpointSlice:                                  {Default: true, PreRelease: featuregate.Beta},
 	EndpointSliceProxying:                          {Default: true, PreRelease: featuregate.Beta},
+	EndpointSliceTerminatingCondition:              {Default: false, PreRelease: featuregate.Alpha},
 	WindowsEndpointSliceProxying:                   {Default: false, PreRelease: featuregate.Alpha},
 	EvenPodsSpread:                                 {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.21
 	StartupProbe:                                   {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.21