diff --git a/class_content/index.html b/class_content/index.html
index 75e56c2..60ef3c5 100644
--- a/class_content/index.html
+++ b/class_content/index.html
@@ -10,7 +10,7 @@
 <header id="header">この部分は header.html に置き換わる</header>
 <main>
     <section class="logobox">
-        <img src="jdlogo_A.png" width="440" height="440"
+        <img src="../jdlogo_A.png" width="440" height="440"
         alt="Junior-Doctor Chokai Academy">
         <h1>ジュニアドクター鳥海塾</h1>
     </section>