diff --git a/src/Plugin/search_api/processor/SnowballStemmer.php b/src/Plugin/search_api/processor/SnowballStemmer.php
index 15dc00a519018231daf7b18add6584eef07ef17d..34b2903803f4fef607e6d17773b4713871846e57 100644
--- a/src/Plugin/search_api/processor/SnowballStemmer.php
+++ b/src/Plugin/search_api/processor/SnowballStemmer.php
@@ -4,6 +4,7 @@ namespace Drupal\snowball_stemmer\Plugin\search_api\processor;
 
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
+use Drupal\search_api\IndexInterface;
 use Drupal\search_api\Query\QueryInterface;
 use Drupal\search_api\Plugin\search_api\processor\Stemmer as StemmerProcessor;
 use Drupal\snowball_stemmer\Stemmer;
@@ -100,6 +101,13 @@ class SnowballStemmer extends StemmerProcessor {
     return $this;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public static function supportsIndex(IndexInterface $index): bool {
+    return TRUE;
+  }
+
   /**
    * {@inheritdoc}
    */