diff --git a/administrator/components/com_finder/src/Indexer/Result.php b/administrator/components/com_finder/src/Indexer/Result.php
index 6cc6470804a74..2e1547d3ab53d 100644
--- a/administrator/components/com_finder/src/Indexer/Result.php
+++ b/administrator/components/com_finder/src/Indexer/Result.php
@@ -392,7 +392,7 @@ public function getTaxonomy($branch = null)
      *
      * @since   2.5
      */
-    public function addTaxonomy($branch, $title, $state = 1, $access = 1, $language = '')
+    public function addTaxonomy($branch, $title, $state = 1, $access = 1, $language = '*')
     {
         // We can't add taxonomies with empty titles
         if (!trim($title)) {
@@ -427,7 +427,7 @@ public function addTaxonomy($branch, $title, $state = 1, $access = 1, $language
      *
      * @since   4.0.0
      */
-    public function addNestedTaxonomy($branch, ImmutableNodeInterface $contentNode, $state = 1, $access = 1, $language = '')
+    public function addNestedTaxonomy($branch, ImmutableNodeInterface $contentNode, $state = 1, $access = 1, $language = '*')
     {
         // We can't add taxonomies with empty titles
         if (!trim($contentNode->title)) {
diff --git a/administrator/components/com_finder/src/Indexer/Taxonomy.php b/administrator/components/com_finder/src/Indexer/Taxonomy.php
index d24ba0afc1276..969e53d7609ee 100644
--- a/administrator/components/com_finder/src/Indexer/Taxonomy.php
+++ b/administrator/components/com_finder/src/Indexer/Taxonomy.php
@@ -68,7 +68,7 @@ public static function addBranch($title, $state = 1, $access = 1)
         $node->state     = $state;
         $node->access    = $access;
         $node->parent_id = 1;
-        $node->language  = '';
+        $node->language  = '*';
 
         return self::storeNode($node, 1);
     }
@@ -87,7 +87,7 @@ public static function addBranch($title, $state = 1, $access = 1)
      * @since   2.5
      * @throws  \RuntimeException on database error.
      */
-    public static function addNode($branch, $title, $state = 1, $access = 1, $language = '')
+    public static function addNode($branch, $title, $state = 1, $access = 1, $language = '*')
     {
         // Get the branch id, insert it if it does not exist.
         $branchId = static::addBranch($branch);
@@ -116,7 +116,7 @@ public static function addNode($branch, $title, $state = 1, $access = 1, $langua
      *
      * @since   4.0.0
      */
-    public static function addNestedNode($branch, NodeInterface $node, $state = 1, $access = 1, $language = '', $branchId = null)
+    public static function addNestedNode($branch, NodeInterface $node, $state = 1, $access = 1, $language = '*', $branchId = null)
     {
         if (!$branchId) {
             // Get the branch id, insert it if it does not exist.