diff --git a/core/includes/form.inc b/core/includes/form.inc
index 27f450e..ec07d6e 100644
--- a/core/includes/form.inc
+++ b/core/includes/form.inc
@@ -3765,6 +3765,9 @@ function form_validate_table($element, &$form_state) {
  *     name must not be changed after initial creation.
  */
 function form_process_machine_name($element, &$form_state) {
+  // We need to pass the langcode to the client.
+  $language = language(LANGUAGE_TYPE_INTERFACE);
+
   // Apply default form element properties.
   $element += array(
     '#title' => t('Machine-readable name'),
@@ -3831,6 +3834,7 @@ function form_process_machine_name($element, &$form_state) {
       'machineName' => array(
         '#' . $source['#id'] => $element['#machine_name'],
       ),
+      'langcode' => $language->langcode,
     ),
   );
   $element['#attached']['library'][] = array('system', 'drupal.machine-name');
diff --git a/core/misc/machine-name.js b/core/misc/machine-name.js
index 9ef6e47..1db3b41 100644
--- a/core/misc/machine-name.js
+++ b/core/misc/machine-name.js
@@ -42,19 +42,19 @@ Drupal.behaviors.machineName = {
 
     function machineNameHandler(e) {
       var data = e.data;
-      machine = self.transliterate($(e.target).val(), data.options);
-      // Set the machine name to the transliterated value.
-      if (machine !== '') {
-        if (machine !== data.options.replace) {
-          data.$target.val(machine);
-          data.$preview.html(data.options.field_prefix + Drupal.checkPlain(machine) + data.options.field_suffix);
-        }
-        data.$suffix.show();
+      var settings = data.options;
+      var baseValue = $(e.target).val();
+
+      var rx = new RegExp(settings.replace_pattern, 'g');
+      var expected = baseValue.toLowerCase().replace(rx, settings.replace).substr(0, settings.maxlength);
+
+      if(baseValue.toLowerCase() != expected) {
+        self.transliterate(baseValue, settings).done(function(machine) {
+          self.showMachineName(machine.substr(0, settings.maxlength), data);
+        });
       }
       else {
-        data.$suffix.hide();
-        data.$target.val(machine);
-        data.$preview.empty();
+        self.showMachineName(expected, data);
       }
     }
 
@@ -124,6 +124,22 @@ Drupal.behaviors.machineName = {
     }
   },
 
+  showMachineName: function (machine, data) {
+    // Set the machine name to the transliterated value.
+    if (machine !== '') {
+      if (machine !== data.options.replace) {
+        data.$target.val(machine);
+        data.$preview.html(data.options.field_prefix + Drupal.checkPlain(machine) + data.options.field_suffix);
+      }
+      data.$suffix.show();
+    }
+    else {
+      data.$suffix.hide();
+      data.$target.val(machine);
+      data.$preview.empty();
+    }
+  },
+
   /**
    * Transliterate a human-readable name to a machine name.
    *
@@ -141,8 +157,13 @@ Drupal.behaviors.machineName = {
    *   The transliterated source string.
    */
   transliterate: function (source, settings) {
-    var rx = new RegExp(settings.replace_pattern, 'g');
-    return source.toLowerCase().replace(rx, settings.replace).substr(0, settings.maxlength);
+    return $.get(drupalSettings.basePath + 'machine_name/transliterate', {
+        text: source,
+        langcode: drupalSettings.langcode,
+        replace_pattern: settings.replace_pattern,
+        replace: settings.replace,
+        lowercase: true
+    });
   }
 };
 
diff --git a/core/modules/system/lib/Drupal/system/MachineNameController.php b/core/modules/system/lib/Drupal/system/MachineNameController.php
new file mode 100644
index 0000000..4a63f16
--- /dev/null
+++ b/core/modules/system/lib/Drupal/system/MachineNameController.php
@@ -0,0 +1,63 @@
+<?php
+
+/**
+ * @file
+ * Contains Drupal\system\MachineNameController.
+ */
+
+namespace Drupal\system;
+
+use Drupal\Core\Transliteration\PHPTransliteration;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * Controller routines for machine name transliteration routes.
+ */
+class MachineNameController {
+
+  /**
+   * The transliteration helper.
+   *
+   * @var \Drupal\Core\Transliteration\PHPTransliteration
+   */
+  protected $transliteration;
+
+  /**
+   * Constructs a MachineNameController object.
+   *
+   * @param \Drupal\Core\Transliteration\PHPTransliteration $transliteration
+   *   The transliteration helper.
+   */
+  public function __construct(PHPTransliteration $transliteration) {
+    $this->transliteration = $transliteration;
+  }
+
+  /**
+   * Transliterates a string in given language. Various postprocessing possible.
+   *
+   * @param \Symfony\Component\HttpFoundation\Request $request
+   *   The input string and language for the transliteration.
+   *   Optionally may contain the replace_pattern, replace, lowercase parameters.
+   *
+   * @return \Symfony\Component\HttpFoundation\JsonResponse
+   *   The transliterated string.
+   */
+  public function transliterate(Request $request) {
+    $text = $request->query->get('text');
+    $langcode = $request->query->get('langcode');
+    $replace_pattern = $request->query->get('replace_pattern');
+    $replace = $request->query->get('replace');
+    $lowercase = $request->query->get('lowercase');
+
+    $transliterated = $this->transliteration->transliterate($text, $langcode, '_');
+    if($lowercase) {
+      $transliterated = drupal_strtolower($transliterated);
+    }
+    if(isset($replace_pattern) && isset($replace)) {
+      $transliterated = preg_replace('@' . $replace_pattern . '@', $replace, $transliterated);
+    }
+    return new JsonResponse($transliterated);
+  }
+
+}
diff --git a/core/modules/system/lib/Drupal/system/SystemBundle.php b/core/modules/system/lib/Drupal/system/SystemBundle.php
index 2b937c0..fc303ef 100644
--- a/core/modules/system/lib/Drupal/system/SystemBundle.php
+++ b/core/modules/system/lib/Drupal/system/SystemBundle.php
@@ -8,6 +8,7 @@
 namespace Drupal\system;
 
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\HttpKernel\Bundle\Bundle;
 
 /**
@@ -21,6 +22,8 @@ class SystemBundle extends Bundle {
   public function build(ContainerBuilder $container) {
     $container->register('access_check.cron', 'Drupal\system\Access\CronAccessCheck')
       ->addTag('access_check');
+    $container->register('system.machine_name_controller', 'Drupal\system\MachineNameController')
+      ->addArgument(new Reference('transliteration'));
 
     // Register the various system plugin manager classes with the dependency
     // injection container.
diff --git a/core/modules/system/system.routing.yml b/core/modules/system/system.routing.yml
index 085895e..8048579 100644
--- a/core/modules/system/system.routing.yml
+++ b/core/modules/system/system.routing.yml
@@ -4,3 +4,9 @@ system.cron:
     _controller: '\Drupal\system\CronController::run'
   requirements:
     _access_system_cron: 'TRUE'
+machine_name_transliterate:
+  pattern: '/machine_name/transliterate'
+  defaults:
+    _controller: 'system.machine_name_controller:transliterate'
+  requirements:
+    _permission: 'access content'