diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/server_run_options.go b/staging/src/k8s.io/apiserver/pkg/server/options/server_run_options.go
index 09668646ae8..44a67345c2a 100644
--- a/staging/src/k8s.io/apiserver/pkg/server/options/server_run_options.go
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/server_run_options.go
@@ -22,7 +22,6 @@ import (
 	"strings"
 	"time"
 
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime/serializer"
 	"k8s.io/apimachinery/pkg/util/errors"
 	"k8s.io/apiserver/pkg/server"
@@ -205,11 +204,6 @@ func (s *ServerRunOptions) AddUniversalFlags(fs *pflag.FlagSet) {
 	fs.StringVar(&s.ExternalHost, "external-hostname", s.ExternalHost,
 		"The hostname to use when generating externalized URLs for this master (e.g. Swagger API Docs or OpenID Discovery).")
 
-	deprecatedMasterServiceNamespace := metav1.NamespaceDefault
-	fs.StringVar(&deprecatedMasterServiceNamespace, "master-service-namespace", deprecatedMasterServiceNamespace, ""+
-		"DEPRECATED: the namespace from which the Kubernetes master services should be injected into pods.")
-	fs.MarkDeprecated("master-service-namespace", "This flag will be removed in v1.27")
-
 	fs.IntVar(&s.MaxRequestsInFlight, "max-requests-inflight", s.MaxRequestsInFlight, ""+
 		"This and --max-mutating-requests-inflight are summed to determine the server's total concurrency limit "+
 		"(which must be positive) if --enable-priority-and-fairness is true. "+