diff --git a/mozilla/xpfe/appshell/src/nsWebShellWindow.cpp b/mozilla/xpfe/appshell/src/nsWebShellWindow.cpp
index f880855c9a9..f46ead1e37b 100644
--- a/mozilla/xpfe/appshell/src/nsWebShellWindow.cpp
+++ b/mozilla/xpfe/appshell/src/nsWebShellWindow.cpp
@@ -82,6 +82,7 @@ static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
 #include "nsIDOMNode.h"
 #include "nsIDOMElement.h"
 #include "nsIDocumentLoader.h"
+#include "nsIDocumentLoaderFactory.h"
 #include "nsIObserverService.h"
 #include "prprf.h"
 //#include "nsIDOMHTMLInputElement.h"