diff --git a/pysystemmgr/system_manager.py b/pysystemmgr/system_manager.py
index fe786e5..716c85d 100644
--- a/pysystemmgr/system_manager.py
+++ b/pysystemmgr/system_manager.py
@@ -19,9 +19,9 @@
 
 class SystemManager(DbusProperties, DbusObjectManager):
     def __init__(self, bus, obj_name):
-        DbusProperties.__init__(self)
-        DbusObjectManager.__init__(self)
-        dbus.service.Object.__init__(self, bus, obj_name)
+        super(SystemManager, self).__init__(
+            conn=bus,
+            object_path=obj_name)
         self.bus = bus
 
         bus.add_signal_receiver(