diff --git a/extensions/java/xpcom/nsJavaXPTCStubWeakRef.h b/extensions/java/xpcom/nsJavaXPTCStubWeakRef.h
index 8794443dd11..ad39f614202 100644
--- a/extensions/java/xpcom/nsJavaXPTCStubWeakRef.h
+++ b/extensions/java/xpcom/nsJavaXPTCStubWeakRef.h
@@ -48,7 +48,7 @@ public:
 	nsJavaXPTCStubWeakRef(JNIEnv* env, jobject aJavaObject);
 	virtual ~nsJavaXPTCStubWeakRef();
 	NS_DECL_ISUPPORTS
-  NS_DECL_NSIWEAKREFERENCE;
+  NS_DECL_NSIWEAKREFERENCE
 
 protected:
   JNIEnv* mJavaEnv;