diff --git a/src/scripts/view/battle/Arena.ts b/src/scripts/view/battle/Arena.ts
index d9af399..d64d5ad 100644
--- a/src/scripts/view/battle/Arena.ts
+++ b/src/scripts/view/battle/Arena.ts
@@ -24,8 +24,8 @@ module SpaceTac.View {
             super(battleview.game);
 
             var background = new Phaser.Button(battleview.game, 0, 0, "ui-arena-background");
-            var expected_width = this.stage.width - 252;
-            var expected_height = this.stage.height - 100;
+            var expected_width = 1280 - 252;
+            var expected_height = 720 - 100;
             background.scale.set(expected_width / background.width, expected_height / background.height);
             this.background = background;