diff --git a/docs/02-config.md b/docs/02-config.md
index ae93ef4..eb2b0c6 100644
--- a/docs/02-config.md
+++ b/docs/02-config.md
@@ -22,6 +22,8 @@ codefog_tags:
         my_manager:
             source: 'tl_table.tags' # in format <table>.<field>, or an array of such
             service: '' # optional, manager service to use (defaults to "codefog_tags.default_manager")
+            locale: '' # optional, locale to use for alias generation (defaults to "en")
+            validChars: '' # optional, validChars to use for alias generation (defaults to "0-9a-z")
             alias: '' # optional, alias of the newly created service
 ```
 
diff --git a/src/DependencyInjection/CodefogTagsExtension.php b/src/DependencyInjection/CodefogTagsExtension.php
index d649e9b..0e1c178 100755
--- a/src/DependencyInjection/CodefogTagsExtension.php
+++ b/src/DependencyInjection/CodefogTagsExtension.php
@@ -44,7 +44,7 @@ private function createManager(string $name, array $config, ContainerBuilder $co
 
         $container
             ->setDefinition($id, new ChildDefinition($config['service']))
-            ->setArguments([$name, $config['source']])
+            ->setArguments([$name, $config['source'], $config['locale'], $config['validChars']])
             ->addTag(ManagerPass::TAG_NAME, ['alias' => $name])
             ->setPublic(true)
         ;
diff --git a/src/DependencyInjection/Configuration.php b/src/DependencyInjection/Configuration.php
index 0ae3355..53419cc 100644
--- a/src/DependencyInjection/Configuration.php
+++ b/src/DependencyInjection/Configuration.php
@@ -49,6 +49,8 @@ static function (string $value): array {
                             ->end()
                         ->end()
                         ->scalarNode('service')->defaultValue('codefog_tags.default_manager')->end()
+                        ->scalarNode('locale')->defaultValue('en')->end()
+                        ->scalarNode('validChars')->defaultValue('0-9a-z')->end()
                         ->scalarNode('alias')->defaultNull()->end()
                     ->end()
                 ->end()
diff --git a/src/EventListener/DataContainer/TagListener.php b/src/EventListener/DataContainer/TagListener.php
index ac08aee..f19a0f7 100644
--- a/src/EventListener/DataContainer/TagListener.php
+++ b/src/EventListener/DataContainer/TagListener.php
@@ -271,7 +271,12 @@ public function onAliasSaveCallback(string $value, DataContainer $dc): string
         // Generate alias if there is none
         if (!$value) {
             $autoAlias = true;
-            $value = StringUtil::generateAlias($dc->activeRecord->name);
+            $manager = $this->registry->get($dc->activeRecord->source);
+            $aliasOptions = [
+                'locale' => $manager->getLocale(),
+                'validChars' => $manager->getValidChars()
+            ];
+            $value = System::getContainer()->get('contao.slug')->generate($dc->activeRecord->name, $aliasOptions);
         }
 
         $existingAliases = $this->db->fetchOne("SELECT COUNT(*) FROM {$dc->table} WHERE alias=? AND source=?", [$value, $dc->activeRecord->source]);
diff --git a/src/Manager/DefaultManager.php b/src/Manager/DefaultManager.php
index a4741c8..a615286 100644
--- a/src/Manager/DefaultManager.php
+++ b/src/Manager/DefaultManager.php
@@ -20,6 +20,7 @@
 use Codefog\TagsBundle\Tag;
 use Contao\DataContainer;
 use Contao\StringUtil;
+use Contao\System;
 
 class DefaultManager implements ManagerInterface, DcaAwareInterface, InsertTagsAwareInterface
 {
@@ -33,6 +34,16 @@ class DefaultManager implements ManagerInterface, DcaAwareInterface, InsertTagsA
      */
     protected $sources;
 
+    /**
+     * @var string
+     */
+    protected $locale;
+
+    /**
+     * @var string
+     */
+    protected $validChars;
+
     /**
      * @var TagFinder
      */
@@ -46,10 +57,12 @@ class DefaultManager implements ManagerInterface, DcaAwareInterface, InsertTagsA
     /**
      * DefaultManager constructor.
      */
-    public function __construct(string $name, array $sources)
+    public function __construct(string $name, array $sources, string $locale, string $validChars)
     {
         $this->name = $name;
         $this->sources = $sources;
+        $this->locale = $locale;
+        $this->validChars = $validChars;
     }
 
     /**
@@ -272,6 +285,23 @@ public function getSourceFinder(): SourceFinder
         return $this->sourceFinder;
     }
 
+    /**
+     * Get locale.
+     */
+    public function getLocale(): string
+    {
+        return $this->locale;
+    }
+
+    /**
+     * Get validChars.
+     */
+    public function getValidChars(): string
+    {
+        return $this->validChars;
+    }
+
+
     /**
      * Create the source criteria.
      */
@@ -299,7 +329,11 @@ protected function getSource(string $source = null): string
      */
     protected function generateAlias(TagModel $model, string $source = null): void
     {
-        $alias = StringUtil::generateAlias($model->name);
+        $aliasOptions = [
+            'locale' => $this->locale,
+            'validChars' => $this->validChars
+        ];
+        $alias = System::getContainer()->get('contao.slug')->generate($model->name, $aliasOptions);
 
         // Add ID to alias if it already exists
         if (null !== ($existingTag = $this->tagFinder->findSingle($this->createTagCriteria($source)->setAlias($alias)))) {
diff --git a/src/Manager/ManagerInterface.php b/src/Manager/ManagerInterface.php
index 412406d..f2fb258 100644
--- a/src/Manager/ManagerInterface.php
+++ b/src/Manager/ManagerInterface.php
@@ -23,4 +23,14 @@ public function getAllTags(string $source = null): array;
      * Get tags optionally filtered by values.
      */
     public function getFilteredTags(array $values, string $source = null): array;
+
+    /**
+     * Get locale.
+     */
+    public function getLocale(): string;
+
+    /**
+     * Get validChars.
+     */
+    public function getValidChars(): string;
 }