diff --git a/cmd/kubelet/app/server.go b/cmd/kubelet/app/server.go
index 875825bf9e8..29e7b30d951 100644
--- a/cmd/kubelet/app/server.go
+++ b/cmd/kubelet/app/server.go
@@ -109,8 +109,6 @@ type KubeletServer struct {
 	ReallyCrashForTesting bool
 	// Insert a probability of random errors during calls to the master.
 	ChaosChance float64
-	// Is the kubelet containerized?
-	Containerized bool
 }
 
 // bootstrapping interface for kubelet, targets the initialization protocol
@@ -215,7 +213,6 @@ func (s *KubeletServer) AddFlags(fs *pflag.FlagSet) {
 	// Flags intended for testing, not recommended used in production environments.
 	fs.BoolVar(&s.ReallyCrashForTesting, "really-crash-for-testing", s.ReallyCrashForTesting, "If true, when panics occur crash. Intended for testing.")
 	fs.Float64Var(&s.ChaosChance, "chaos-chance", s.ChaosChance, "If > 0.0, introduce random client errors and latency. Intended for testing. [default=0.0]")
-	fs.BoolVar(&s.Containerized, "containerized", s.Containerized, "Experimental support for running kubelet in a container.  Intended for testing. [default=false]")
 }
 
 // Run runs the specified KubeletServer.  This should never exit.
@@ -274,12 +271,6 @@ func (s *KubeletServer) Run(_ []string) error {
 		KeyFile:  s.TLSPrivateKeyFile,
 	}
 
-	mounter := mount.New()
-	if s.Containerized {
-		glog.Info("Running kubelet in containerized mode (experimental)")
-		mounter = &mount.NsenterMounter{}
-	}
-
 	kcfg := KubeletConfig{
 		Address:                        s.Address,
 		AllowPrivileged:                s.AllowPrivileged,
@@ -319,7 +310,7 @@ func (s *KubeletServer) Run(_ []string) error {
 		ResourceContainer:         s.ResourceContainer,
 		CgroupRoot:                s.CgroupRoot,
 		ContainerRuntime:          s.ContainerRuntime,
-		Mounter:                   mounter,
+		Mounter:                   mount.New(),
 	}
 
 	RunKubelet(&kcfg, nil)