diff --git a/kivy/core/window/__init__.py b/kivy/core/window/__init__.py
index f7f026250..50812df2d 100755
--- a/kivy/core/window/__init__.py
+++ b/kivy/core/window/__init__.py
@@ -464,6 +464,10 @@ class WindowBase(EventDispatcher):
     .. versionadded:: 1.2.0
     '''
 
+    @property
+    def __self__(self):
+        return self
+
     top = NumericProperty(None, allownone=True)
     left = NumericProperty(None, allownone=True)
     position = OptionProperty('auto', options=['auto', 'custom'])