diff --git a/mozilla/java/dom/jni/nativeDOMProxyListener.cpp b/mozilla/java/dom/jni/nativeDOMProxyListener.cpp
index d51eab9ef4a..571944a8005 100644
--- a/mozilla/java/dom/jni/nativeDOMProxyListener.cpp
+++ b/mozilla/java/dom/jni/nativeDOMProxyListener.cpp
@@ -59,7 +59,7 @@ NativeDOMProxyListener::~NativeDOMProxyListener()
     }
 }
 
-nsresult NativeDOMProxyListener::HandleEvent(nsIDOMEvent* aEvent) 
+NS_IMETHODIMP NativeDOMProxyListener::HandleEvent(nsIDOMEvent* aEvent) 
 {
     jobject jevent;
     JNIEnv *env;
@@ -92,7 +92,7 @@ nsresult NativeDOMProxyListener::HandleEvent(nsIDOMEvent* aEvent)
     return NS_OK;
 }
 
-nsresult NativeDOMProxyListener::QueryInterface(const nsIID &aIID, void **aResult)
+NS_IMETHODIMP NativeDOMProxyListener::QueryInterface(const nsIID &aIID, void **aResult)
 {
     if (aResult == NULL) {  
         return NS_ERROR_NULL_POINTER;  
@@ -115,12 +115,12 @@ nsresult NativeDOMProxyListener::QueryInterface(const nsIID &aIID, void **aResul
     return NS_OK;  
 }
 
-nsrefcnt NativeDOMProxyListener::AddRef()
+NS_IMETHODIMP_(nsrefcnt) NativeDOMProxyListener::AddRef()
 {
     return mRefCnt++;
 }
 
-nsrefcnt NativeDOMProxyListener::Release()
+NS_IMETHODIMP_(nsrefcnt) NativeDOMProxyListener::Release()
 {
     if (--mRefCnt == 0) {  
         delete this;  
diff --git a/mozilla/java/dom/jni/nativeDOMProxyListener.h b/mozilla/java/dom/jni/nativeDOMProxyListener.h
index 8584c2e0b47..a811d3aed2e 100644
--- a/mozilla/java/dom/jni/nativeDOMProxyListener.h
+++ b/mozilla/java/dom/jni/nativeDOMProxyListener.h
@@ -17,7 +17,7 @@ class NativeDOMProxyListener: public nsIDOMEventListener{
 
 	NativeDOMProxyListener(JNIEnv *env, jobject jlistener);
 
-	virtual nsresult HandleEvent(nsIDOMEvent* aEvent);
+	NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent);
 
 	NS_IMETHOD QueryInterface(const nsIID &aIID,  void **aResult);  
 	NS_IMETHOD_(nsrefcnt) AddRef(void);