diff --git a/0012-on.initialize b/0012-on.initialize
index 32a9ff3..50f0113 100644
--- a/0012-on.initialize
+++ b/0012-on.initialize
@@ -6,6 +6,7 @@ on.initialize = function(arg)
 	if Settings[Filename] then
 		Viewport = Settings[Filename].viewport
 	end
+	Viewport.w, Viewport.h = App.screen.size()
 	load_graph_from_disk()
 	A()
 end