diff --git a/library/Zend/Search/Lucene/Document/Html.php b/library/Zend/Search/Lucene/Document/Html.php
index 4e09c6dbc5..65126e1aa9 100644
--- a/library/Zend/Search/Lucene/Document/Html.php
+++ b/library/Zend/Search/Lucene/Document/Html.php
@@ -423,7 +423,7 @@ public function highlightExtended($words, $callback, $params = array())
         $wordsToHighlightList = array();
         $analyzer = Zend_Search_Lucene_Analysis_Analyzer::getDefault();
         foreach ($words as $wordString) {
-            $wordsToHighlightList[] = $analyzer->tokenize($wordString);
+            $wordsToHighlightList[] = $analyzer->tokenize($wordString, 'UTF-8');
         }
         $wordsToHighlight = call_user_func_array('array_merge', $wordsToHighlightList);