diff --git a/cmd/kubeadm/app/phases/upgrade/configuration.go b/cmd/kubeadm/app/phases/upgrade/configuration.go
index 7c8393cbcab..589578e9739 100644
--- a/cmd/kubeadm/app/phases/upgrade/configuration.go
+++ b/cmd/kubeadm/app/phases/upgrade/configuration.go
@@ -64,7 +64,7 @@ func loadConfigurationBytes(client clientset.Interface, w io.Writer, cfgPath str
 	configMap, err := client.CoreV1().ConfigMaps(metav1.NamespaceSystem).Get(constants.MasterConfigurationConfigMap, metav1.GetOptions{})
 	if apierrors.IsNotFound(err) {
 		fmt.Printf("[upgrade/config] In order to upgrade, a ConfigMap called %q in the %s namespace must exist.\n", constants.MasterConfigurationConfigMap, metav1.NamespaceSystem)
-		fmt.Println("[upgrade/config] Without this information, 'kubeadm upgrade' don't how to configure your upgraded cluster.")
+		fmt.Println("[upgrade/config] Without this information, 'kubeadm upgrade' won't know how to configure your upgraded cluster.")
 		fmt.Println("")
 		fmt.Println("[upgrade/config] Next steps:")
 		fmt.Printf("\t- OPTION 1: Run 'kubeadm config upload from-flags' and specify the same CLI arguments you passed to 'kubeadm init' when you created your master.\n")