diff --git a/html5video/README.md b/html5video/README.md
index 39d4999..e624f2a 100644
--- a/html5video/README.md
+++ b/html5video/README.md
@@ -1,6 +1,6 @@
 動画とマップの同期
 ==================
-[index.html](../../pages/html5video/index.html)
+[index.html](../../../pages/html5video/index.html)
 
 時計が正確なことを前提とし、