--- data/gdm.conf-custom.in.orig	2013-11-20 10:35:05.845253412 +0000
+++ data/gdm.conf-custom.in	2013-11-20 10:35:11.644252821 +0000
@@ -2,6 +2,9 @@
 
 [daemon]
 
+HaltCommand=/sbin/shutdown -p now
+RebootCommand=/sbin/shutdown -r now
+
 [security]
 
 [xdmcp]