diff --git a/examples/3d/transmission.rs b/examples/3d/transmission.rs
index 007b98c35c..fe35a62548 100644
--- a/examples/3d/transmission.rs
+++ b/examples/3d/transmission.rs
@@ -39,6 +39,7 @@ fn main() {
 
     app.add_plugins(DefaultPlugins)
         .insert_resource(ClearColor(Color::BLACK))
+        .insert_resource(PointLightShadowMap { size: 2048 })
         .insert_resource(AmbientLight {
             brightness: 0.0,
             ..default()