diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 5578f462..78094ae4 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -17,3 +17,9 @@ parameters:
 			identifier: function.alreadyNarrowedType
 			count: 1
 			path: src/OutputFilter.php
+
+		-
+			message: '#^Method Joomla\\Filter\\OutputFilter\:\:cleanText\(\) never assigns null to &\$text so it can be removed from the by\-ref type\.$#'
+			identifier: parameterByRef.unusedType
+			count: 1
+			path: src/OutputFilter.php
diff --git a/src/OutputFilter.php b/src/OutputFilter.php
index be4b649e..8643435c 100644
--- a/src/OutputFilter.php
+++ b/src/OutputFilter.php
@@ -223,7 +223,7 @@ public static function ampReplace($text)
      *
      * @since   1.0
      */
-    public static function cleanText($text)
+    public static function cleanText(&$text)
     {
         $text = preg_replace("'<script[^>]*>.*?</script>'si", '', $text);
         $text = preg_replace('/<a\s+.*?href="([^"]+)"[^>]*>([^<]+)<\/a>/is', '\2 (\1)', $text);