Support to set watchdog timer value
diff --git a/bin/ipmi_debug.py b/bin/ipmi_debug.py
index 43dbcbd..300756c 100755
--- a/bin/ipmi_debug.py
+++ b/bin/ipmi_debug.py
@@ -69,7 +69,7 @@
 
 def main():
     dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
-    bus = dbus.SessionBus()
+    bus = dbus.SystemBus()
     name = dbus.service.BusName(DBUS_NAME, bus)
     obj = IpmiDebug(bus, OBJ_NAME)
     mainloop = gobject.MainLoop()