diff --git a/examples/window/expanding_window.rs b/examples/window/expanding_window.rs
index c7db4e4c86e221..968039c3480d0e 100644
--- a/examples/window/expanding_window.rs
+++ b/examples/window/expanding_window.rs
@@ -14,9 +14,14 @@ fn main() {
         .add_plugins(DefaultPlugins)
         .insert_resource(Phase::ContractingY)
         .add_system(change_window_size)
+        .add_startup_system(setup)
         .run();
 }
 
+fn setup(mut commands: Commands) {
+    commands.spawn_bundle(OrthographicCameraBundle::new_3d());
+}
+
 enum Phase {
     ContractingY,
     ContractingX,