diff --git a/Window.py b/Window.py
index bf65c06..c944449 100644
--- a/Window.py
+++ b/Window.py
@@ -3,7 +3,9 @@ import gtk
 import gobject
 
 class Window:
-    def __init__(self):
+    def __init__(self, ds):
+        self.ds = ds
+
         # Top-level Window creation
         self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
         self.window.set_geometry_hints();