diff --git a/cmd/kubeadm/app/cmd/reset.go b/cmd/kubeadm/app/cmd/reset.go
index 4f2261f54c..f181011ead 100644
--- a/cmd/kubeadm/app/cmd/reset.go
+++ b/cmd/kubeadm/app/cmd/reset.go
@@ -156,7 +156,7 @@ func (r *Reset) Run(out io.Writer, client clientset.Interface) error {
 
 	// Try to unmount mounted directories under kubeadmconstants.KubeletRunDirectory in order to be able to remove the kubeadmconstants.KubeletRunDirectory directory later
 	fmt.Printf("[reset] unmounting mounted directories in %q\n", kubeadmconstants.KubeletRunDirectory)
-	umountDirsCmd := fmt.Sprintf("awk '$2 ~ path {print $2}' path=%s /proc/mounts | xargs -r umount", kubeadmconstants.KubeletRunDirectory)
+	umountDirsCmd := fmt.Sprintf("awk '$2 ~ path {print $2}' path=%s/ /proc/mounts | xargs -r umount", kubeadmconstants.KubeletRunDirectory)
 
 	klog.V(1).Infof("[reset] executing command %q", umountDirsCmd)
 	umountOutputBytes, err := exec.Command("sh", "-c", umountDirsCmd).Output()