diff --git a/pkg/features/kube_features.go b/pkg/features/kube_features.go
index 571047be6e5..d13c593d14c 100644
--- a/pkg/features/kube_features.go
+++ b/pkg/features/kube_features.go
@@ -1168,6 +1168,8 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 
 	genericfeatures.ServerSideFieldValidation: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.29
 
+	genericfeatures.StructuredAuthenticationConfiguration: {Default: false, PreRelease: featuregate.Alpha},
+
 	genericfeatures.StructuredAuthorizationConfiguration: {Default: false, PreRelease: featuregate.Alpha},
 
 	genericfeatures.UnauthenticatedHTTP2DOSMitigation: {Default: true, PreRelease: featuregate.Beta},