X-Git-Url: http://nitlanguage.org

diff --git a/examples/mnit_ballz/src/ballz_linux.nit b/examples/mnit_ballz/src/ballz_linux.nit
index bd2e563..f3a3db6 100644
--- a/examples/mnit_ballz/src/ballz_linux.nit
+++ b/examples/mnit_ballz/src/ballz_linux.nit
@@ -36,6 +36,7 @@ redef class App
 	redef fun on_create
 	do
 		super
+		var display = self.display.as(not null)
 		game = new Game(display.width.to_f, display.height.to_f)
 	end