diff --git a/components/script/dom/element.rs b/components/script/dom/element.rs
index cc3a6304eb3..4cfa77fdb4b 100644
--- a/components/script/dom/element.rs
+++ b/components/script/dom/element.rs
@@ -1194,7 +1194,7 @@ impl<'a> ElementMethods for JSRef<'a, Element> {
             Some(parent) => parent.root()
         };
 
-        let parent: Root<Node> = match context_parent.r().type_id() {
+        let parent = match context_parent.r().type_id() {
             // Step 3.
             NodeTypeId::Document => return Err(NoModificationAllowed),