diff --git a/test/game/pinball_game_test.dart b/test/game/pinball_game_test.dart
index f0420df6..aebb31f9 100644
--- a/test/game/pinball_game_test.dart
+++ b/test/game/pinball_game_test.dart
@@ -50,6 +50,7 @@ void main() {
     Assets.images.flipper.left.keyName,
     Assets.images.flipper.right.keyName,
     Assets.images.boundary.outer.keyName,
+    Assets.images.boundary.outerBottom.keyName,
     Assets.images.boundary.bottom.keyName,
     Assets.images.slingshot.upper.keyName,
     Assets.images.slingshot.lower.keyName,