diff --git a/src/Plugin/facets/processor/DisplayValueWidgetOrderProcessor.php b/src/Plugin/facets/processor/DisplayValueWidgetOrderProcessor.php
index badbf5c..e96b348 100644
--- a/src/Plugin/facets/processor/DisplayValueWidgetOrderProcessor.php
+++ b/src/Plugin/facets/processor/DisplayValueWidgetOrderProcessor.php
@@ -2,9 +2,12 @@
 
 namespace Drupal\facets\Plugin\facets\processor;
 
+use Drupal\Component\Transliteration\TransliterationInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\facets\Processor\WidgetOrderPluginBase;
 use Drupal\facets\Processor\WidgetOrderProcessorInterface;
 use Drupal\facets\Result\Result;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * A processor that orders the results by display value.
@@ -18,34 +21,59 @@ use Drupal\facets\Result\Result;
  *   }
  * )
  */
-class DisplayValueWidgetOrderProcessor extends WidgetOrderPluginBase implements WidgetOrderProcessorInterface {
+class DisplayValueWidgetOrderProcessor extends WidgetOrderPluginBase implements WidgetOrderProcessorInterface, ContainerFactoryPluginInterface {
 
   /**
-   * {@inheritdoc}
+   * @var \Drupal\Component\Transliteration\TransliterationInterface
    */
-  public function sortResults(array $results, $order = 'ASC') {
-    if ($order === 'ASC') {
-      usort($results, 'self::sortDisplayValueAsc');
-    }
-    else {
-      usort($results, 'self::sortDisplayValueDesc');
-    }
+  protected $transliteration;
 
-    return $results;
+  /**
+   * @inheritDoc
+   */
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, TransliterationInterface $transliteration) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition);
+    $this->transliteration = $transliteration;
   }
 
   /**
-   * Sorts ascending.
+   * Creates an instance of the plugin.
    */
-  protected static function sortDisplayValueAsc(Result $a, Result $b) {
-    return strnatcasecmp($a->getDisplayValue(), $b->getDisplayValue());
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    return new static(
+      $configuration,
+      $plugin_id,
+      $plugin_definition,
+      $container->get('transliteration')
+    );
   }
 
   /**
-   * Sorts descending.
+   * {@inheritdoc}
    */
-  protected static function sortDisplayValueDesc(Result $a, Result $b) {
-    return strnatcasecmp($b->getDisplayValue(), $a->getDisplayValue());
+  public function sortResults(array $results, $order = 'ASC') {
+    $transliteration = $this->transliteration;
+
+    if ($order === 'ASC') {
+      // Sorts ascending.
+      usort($results, function (Result $a, Result $b) use ($transliteration) {
+        return strnatcasecmp(
+          $transliteration->removeDiacritics($a->getDisplayValue()),
+          $transliteration->removeDiacritics($b->getDisplayValue())
+        );
+      });
+    }
+    else {
+      // Sorts descending.
+      usort($results, function (Result $a, Result $b) use ($transliteration) {
+        return strnatcasecmp(
+          $transliteration->removeDiacritics($b->getDisplayValue()),
+          $transliteration->removeDiacritics($a->getDisplayValue())
+        );
+      });
+    }
+
+    return $results;
   }
 
 }
diff --git a/tests/src/Unit/Plugin/processor/DisplayValueWidgetOrderProcessorTest.php b/tests/src/Unit/Plugin/processor/DisplayValueWidgetOrderProcessorTest.php
index 54812d4..296ef8c 100644
--- a/tests/src/Unit/Plugin/processor/DisplayValueWidgetOrderProcessorTest.php
+++ b/tests/src/Unit/Plugin/processor/DisplayValueWidgetOrderProcessorTest.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\Tests\facets\Unit\Plugin\processor;
 
+use Drupal\Component\Transliteration\TransliterationInterface;
 use Drupal\facets\Entity\Facet;
 use Drupal\facets\Plugin\facets\processor\DisplayValueWidgetOrderProcessor;
 use Drupal\facets\Processor\ProcessorPluginManager;
@@ -46,7 +47,13 @@ class DisplayValueWidgetOrderProcessorTest extends UnitTestCase {
       new Result('2', '2', 22),
     ];
 
-    $this->processor = new DisplayValueWidgetOrderProcessor([], 'display_value_widget_order', []);
+    $transliteration = $this
+      ->getMockBuilder(TransliterationInterface::class)
+      ->getMock();
+    $transliteration->method('removeDiacritics')->willReturnCallback(function ($value) {
+      return str_replace('Ä', 'A', $value);
+    });
+    $this->processor = new DisplayValueWidgetOrderProcessor([], 'display_value_widget_order', [], $transliteration);
   }
 
   /**
@@ -94,12 +101,14 @@ class DisplayValueWidgetOrderProcessorTest extends UnitTestCase {
     $original = [
       new Result('bb_test', 'Test AA', 10),
       new Result('aa_test', 'Test BB', 10),
+      new Result('ab_test', 'Test ÄB', 10),
     ];
 
     $sorted_results = $this->processor->sortResults($original, 'DESC');
 
     $this->assertEquals('Test BB', $sorted_results[0]->getDisplayValue());
-    $this->assertEquals('Test AA', $sorted_results[1]->getDisplayValue());
+    $this->assertEquals('Test ÄB', $sorted_results[1]->getDisplayValue());
+    $this->assertEquals('Test AA', $sorted_results[2]->getDisplayValue());
   }
 
   /**