diff --git a/vendor/k8s.io/kubernetes/pkg/util/mount/mount_linux.go b/vendor/k8s.io/kubernetes/pkg/util/mount/mount_linux.go
index 4b6cc825e738..0a9d04266714 100644
--- a/vendor/k8s.io/kubernetes/pkg/util/mount/mount_linux.go
+++ b/vendor/k8s.io/kubernetes/pkg/util/mount/mount_linux.go
@@ -271,7 +271,7 @@ func (mounter *Mounter) IsLikelyNotMountPoint(file string) (bool, error) {
 	if err != nil {
 		return true, err
 	}
-	rootStat, err := os.Lstat(file + "/..")
+	rootStat, err := os.Lstat(filepath.Dir(strings.TrimSuffix(file, "/")))
 	if err != nil {
 		return true, err
 	}