diff --git a/artest.html b/artest.html
index e980c2b..64ea166 100644
--- a/artest.html
+++ b/artest.html
@@ -25,7 +25,7 @@
       </a-marker>
 
       <!-- カメラを追加 -->
-      <a-entity third-camera></a-entity>
+      <a-entity camera ="active: true" data-aframe-default-camera></a-entity>
     </a-scene>
   </body>
 </html>