diff --git a/board.go b/board.go
index d17960e..48cc7c8 100644
--- a/board.go
+++ b/board.go
@@ -40,6 +40,8 @@ func animate(sz image.Point, mqMessages chan mqtt.Message) *Animation {
 			images: initialMap(),
 			updown: "marioUp",
 			dir:    image.Point{1, 1},
+			a:      32,
+			b:      24,
 		},
 	}
 }