diff --git a/libraries/cms/component/helper.php b/libraries/cms/component/helper.php
index f1f3159ab5a9e..f028a0700f965 100644
--- a/libraries/cms/component/helper.php
+++ b/libraries/cms/component/helper.php
@@ -251,7 +251,7 @@ public static function filterText($text)
 				// Remove white listed attributes from filter's default blacklist
 				if ($whiteListAttributes)
 				{
-					$filter->attrBlacklist = array_diff($filter->attrBlacklist);
+					$filter->attrBlacklist = array_diff($filter->attrBlacklist, $whiteListAttributes);
 				}
 			}
 			// White lists take third precedence.