Index: /trunk/src/VBox/Main/xml/Settings.cpp
===================================================================
--- /trunk/src/VBox/Main/xml/Settings.cpp	(revision 33827)
+++ /trunk/src/VBox/Main/xml/Settings.cpp	(revision 33828)
@@ -2036,5 +2036,5 @@
             uint32_t port = 0;
             (*pf)->getAttributeValue("name", rule.strName);
-            (*pf)->getAttributeValue("proto", rule.proto);
+            (*pf)->getAttributeValue("proto", (uint32_t&)rule.proto);
             (*pf)->getAttributeValue("hostip", rule.strHostIP);
             (*pf)->getAttributeValue("hostport", port);