diff --git a/phpBB/includes/functions_search.php b/phpBB/includes/functions_search.php
index b02d094b6b..526670e84f 100644
--- a/phpBB/includes/functions_search.php
+++ b/phpBB/includes/functions_search.php
@@ -101,7 +101,7 @@ function split_words(&$entry, $mode = 'post')
 	}
 	else
 	{
-		preg_match_all('/(\*?[a-z0-9]+\*?)|\b([a-z0-9]+)\b/', $entry, $split_entries);
+		preg_match_all('/(\*?[à-ÿa-z0-9]+\*?)|\b([à-ÿa-z0-9]+)\b/', $entry, $split_entries);
 	}
 
 	return $split_entries[1];