diff --git a/DistUpgrade/DistUpgradeController.py b/DistUpgrade/DistUpgradeController.py
index b7dd0af7..c06166b6 100644
--- a/DistUpgrade/DistUpgradeController.py
+++ b/DistUpgrade/DistUpgradeController.py
@@ -2708,10 +2708,18 @@ class DistUpgradeController(object):
             # exits, the connection will be closed and screen inhibition
             # will be removed.
             self._session_bus = dbus.SessionBus()
-            proxy = self._session_bus.get_object('org.freedesktop.ScreenSaver',
-                                                 '/org/freedesktop/ScreenSaver')
-            screensaver = dbus.Interface(proxy, dbus_interface='org.freedesktop.ScreenSaver')
-            screensaver.Inhibit('trisquel-release-upgrader', 'Upgrading Trisquel')
+            try:
+                # Attempt standar "generic"
+                proxy = self._session_bus.get_object('org.freedesktop.ScreenSaver',
+                                                     '/org/freedesktop/ScreenSaver')
+                screensaver = dbus.Interface(proxy, dbus_interface='org.freedesktop.ScreenSaver')
+                screensaver.Inhibit('ubuntu-release-upgrader', 'Upgrading Ubuntu')
+            except Exception:
+                # Attempt MATE specific
+                proxy = self._session_bus.get_object('org.mate.ScreenSaver',
+                                                     '/org/mate/ScreenSaver')
+                screensaver = dbus.Interface(proxy, dbus_interface='org.mate.ScreenSaver')
+                screensaver.Inhibit('ubuntu-release-upgrader', 'Upgrading Ubuntu')
 
             summary = _("Lock screen disabled")
             message = _("Your lock screen has been "