diff --git a/shell/view/frame/Makefile.am b/shell/view/frame/Makefile.am
index 09573aa9..eec6d0fb 100644
--- a/shell/view/frame/Makefile.am
+++ b/shell/view/frame/Makefile.am
@@ -6,4 +6,5 @@ sugar_PYTHON =				\
 	PanelWindow.py			\
 	Frame.py			\
 	ZoomBox.py			\
-	notificationtray.py
+	notificationtray.py		\
+	overlaybox.py