diff --git a/Assets/MediaPipe/Examples/Scripts/SceneDirector.cs b/Assets/MediaPipe/Examples/Scripts/SceneDirector.cs
index cd2189d28..b29279f05 100644
--- a/Assets/MediaPipe/Examples/Scripts/SceneDirector.cs
+++ b/Assets/MediaPipe/Examples/Scripts/SceneDirector.cs
@@ -164,7 +164,7 @@ IEnumerator RunGraph() {
       var height = webCamScreenController.Height();
       var pixelData = new PixelData(colors, width, height);
 
-      graph.PushInput(pixelData);
+      graph.PushInput(pixelData).AssertOk();
       graph.RenderOutput(webCamScreenController, pixelData);
     }
   }