diff --git a/video.js b/video.js
index d1b8b52..0893c01 100644
--- a/video.js
+++ b/video.js
@@ -1,6 +1,5 @@
 var w = window, player;
-// 再生したいyoutubeの動画id
-var vid = 'SlRfwbD2riE';
+// https://youtu.be/SlRfwbD2riEvar vid = 'SlRfwbD2riE';
 
 var tag = document.createElement('script');
 tag.src = "https://www.youtube.com/iframe_api";
@@ -27,4 +26,4 @@ w.onYouTubeIframeAPIReady = function() {
     }
   });
   player.setLoop(true);
-};
\ No newline at end of file
+};