diff --git a/setup/test/tests/stubs.php b/setup/test/tests/stubs.php
index 7185fe24118c7eebf5fc8a36c77a2478ca794ad6..e3a9e6f79b38eb8328743522ee97e3f0dca04f6f 100644
--- a/setup/test/tests/stubs.php
+++ b/setup/test/tests/stubs.php
@@ -51,8 +51,10 @@ class DomElement {
 }
 
 class DomDocument {
+    function getElementsByTagName() {}
     function loadHTML() {}
     function loadXML() {}
+    function saveHTML() {}
 }
 
 class Exception {