diff --git a/content/base/public/Element.h b/content/base/public/Element.h
index 8f6a98e8064c..5b6eb05c24e5 100644
--- a/content/base/public/Element.h
+++ b/content/base/public/Element.h
@@ -458,9 +458,8 @@ public:
 
   virtual nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName, nsIAtom* aPrefix,
                            const nsAString& aValue, bool aNotify);
-  virtual nsresult SetParsedAttr(int32_t aNameSpaceID, nsIAtom* aName,
-                                 nsIAtom* aPrefix, nsAttrValue& aParsedValue,
-                                 bool aNotify);
+  nsresult SetParsedAttr(int32_t aNameSpaceID, nsIAtom* aName, nsIAtom* aPrefix,
+                         nsAttrValue& aParsedValue, bool aNotify);
   virtual bool GetAttr(int32_t aNameSpaceID, nsIAtom* aName,
                          nsAString& aResult) const;
   virtual bool HasAttr(int32_t aNameSpaceID, nsIAtom* aName) const;