diff --git a/mozilla/xpcom/proxy/public/nsProxyEvent.h b/mozilla/xpcom/proxy/public/nsProxyEvent.h
index 8e8376d39ee..980eed22cd2 100644
--- a/mozilla/xpcom/proxy/public/nsProxyEvent.h
+++ b/mozilla/xpcom/proxy/public/nsProxyEvent.h
@@ -131,7 +131,7 @@ private:
 };
 
 
-class NS_EXPORT nsProxyObjectCallInfo
+class nsProxyObjectCallInfo
 {
 public: