diff --git a/mozilla/extensions/xforms/nsXFormsModule.cpp b/mozilla/extensions/xforms/nsXFormsModule.cpp
index 24e4c78a9a1..af1b7ea311e 100644
--- a/mozilla/extensions/xforms/nsXFormsModule.cpp
+++ b/mozilla/extensions/xforms/nsXFormsModule.cpp
@@ -41,6 +41,8 @@
 #include "nsXFormsAtoms.h"
 #include "nsXFormsModelElement.h"
 #include "nsXFormsUtils.h"
+#include "nsICategoryManager.h"
+#include "nsIServiceManager.h"
 
 NS_GENERIC_FACTORY_CONSTRUCTOR(nsXFormsElementFactory)