diff --git a/src/manipulation.js b/src/manipulation.js
index f37ec421a..2cc6d8e20 100644
--- a/src/manipulation.js
+++ b/src/manipulation.js
@@ -485,8 +485,7 @@ function manipulationTarget( elem, content ) {
 
 // Replace/restore the type attribute of script elements for safe DOM manipulation
 function disableScript( elem ) {
-	var attr = elem.getAttributeNode("type");
-	elem.type = ( attr && attr.specified ) + "/" + elem.type;
+	elem.type = (elem.getAttribute("type") !== null) + "/" + elem.type;
 	return elem;
 }
 function restoreScript( elem ) {