diff --git a/test/Helper/DoctypeTest.php b/test/Helper/DoctypeTest.php
index 63a6ee1c..ec660ba3 100644
--- a/test/Helper/DoctypeTest.php
+++ b/test/Helper/DoctypeTest.php
@@ -153,7 +153,7 @@ public function testIsRdfa()
             Helper\Doctype::XHTML_BASIC1,
             Helper\Doctype::HTML4_STRICT,
             Helper\Doctype::HTML4_LOOSE,
-            Helper\Doctype::HTML4_FRAMESET
+            Helper\Doctype::HTML4_FRAMESET,
         );
 
         foreach ($doctypes as $type) {