--- a/content/mathml/content/src/nsMathMLElement.cpp
+++ b/content/mathml/content/src/nsMathMLElement.cpp
@@ -16,16 +16,18 @@
 #include "nsIDocument.h"
 #include "nsEventStates.h"
 #include "nsIPresShell.h"
 #include "nsPresContext.h"
 #include "mozAutoDocUpdate.h"
 #include "nsIScriptError.h"
 #include "nsContentUtils.h"
 
+#include "mozilla/dom/ElementBinding.h"
+
 using namespace mozilla;
 using namespace mozilla::dom;
 
 //----------------------------------------------------------------------
 // nsISupports methods:
 
 DOMCI_NODE_DATA(MathMLElement, nsMathMLElement)
 
@@ -936,8 +938,14 @@ nsMathMLElement::UnsetAttr(int32_t aName
        aNameSpaceID == kNameSpaceID_XLink)) {
     // Note: just because we removed a single href attr doesn't mean there's no href,
     // since there are 2 possible namespaces.
     Link::ResetLinkState(!!aNotify, Link::ElementHasHref());
   }
 
   return rv;
 }
+
+JSObject*
+nsMathMLElement::WrapNode(JSContext *aCx, JSObject *aScope, bool *aTriedToWrap)
+{
+  return ElementBinding::Wrap(aCx, aScope, this, aTriedToWrap);
+}

--- a/content/mathml/content/src/nsMathMLElement.h
+++ b/content/mathml/content/src/nsMathMLElement.h
@@ -22,17 +22,19 @@ class nsMathMLElement : public nsMathMLE
                         public nsIDOMElement,
                         public nsILink,
                         public mozilla::dom::Link
 {
 public:
   nsMathMLElement(already_AddRefed<nsINodeInfo> aNodeInfo)
     : nsMathMLElementBase(aNodeInfo), Link(this),
       mIncrementScriptLevel(false)
-  {}
+  {
+    SetIsDOMBinding();
+  }
 
   // Implementation of nsISupports is inherited from nsMathMLElementBase
   NS_DECL_ISUPPORTS_INHERITED
 
   // Forward implementations of parent interfaces of nsMathMLElement to 
   // our base class
   NS_FORWARD_NSIDOMNODE_TO_NSINODE
   NS_FORWARD_NSIDOMELEMENT_TO_GENERIC
@@ -99,13 +101,18 @@ public:
                            nsIAtom* aPrefix, const nsAString& aValue,
                            bool aNotify);
   virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
                              bool aNotify);
 
   virtual nsXPCClassInfo* GetClassInfo();
 
   virtual nsIDOMNode* AsDOMNode() { return this; }
+
+protected:
+  virtual JSObject* WrapNode(JSContext *aCx, JSObject *aScope,
+                             bool *aTriedToWrap) MOZ_OVERRIDE;
+
 private:
   bool mIncrementScriptLevel;
 };
 
 #endif // nsMathMLElement_h