--- dbus-1.0.0/bus/system.conf.in.orig	2008-11-10 12:57:33.000000000 -0500
+++ dbus-1.0.0/bus/system.conf.in	2008-11-10 12:58:51.000000000 -0500
@@ -45,8 +45,10 @@
     <allow send_destination="org.freedesktop.DBus"/>
     <allow receive_sender="org.freedesktop.DBus"/>
     <!-- valid replies are always allowed -->
-    <allow send_requested_reply="true"/>
-    <allow receive_requested_reply="true"/>
+    <allow send_requested_reply="true" send_type="method_return"/>
+    <allow send_requested_reply="true" send_type="error"/>
+    <allow receive_requested_reply="true" send_type="method_return"/>
+    <allow receive_requested_reply="true" send_type="error"/>
   </policy>
 
   <!-- Config files are placed here that among other things, punch