diff --git a/src/main/kotlin/html4tree/main.kt b/src/main/kotlin/html4tree/main.kt
index 0972fa2c..2d0de1da 100644
--- a/src/main/kotlin/html4tree/main.kt
+++ b/src/main/kotlin/html4tree/main.kt
@@ -427,7 +427,8 @@ fun process_dir(curr_dir: File, excludeSet: Set<String>? = null, dirFiles: Array
      <body>
        <main>
          <h1>${directoryName.escapeHtml()}</h1>
-         <nav aria-label="디렉토리 목록">
+         <nav aria-labelledby="nav-heading">
+         <h2 id="nav-heading" class="visually-hidden">디렉토리 목록</h2>
          <ul role="list">
             <li><a class="dir-link" href="./.." title="상위 디렉토리로 이동"><span class="icon" aria-hidden="true">&#x21B0;</span> <span aria-hidden="true">..</span> <span class="visually-hidden">상위 디렉토리로 이동</span></a></li>
 """ 
diff --git a/src/test/kotlin/html4tree/MainTest.kt b/src/test/kotlin/html4tree/MainTest.kt
index 5b76cc5d..209cc31c 100644
--- a/src/test/kotlin/html4tree/MainTest.kt
+++ b/src/test/kotlin/html4tree/MainTest.kt
@@ -331,7 +331,8 @@ class MainTest {
         assertTrue(htmlContent.contains("<meta name=\"theme-color\" content=\"#ffffff\" media=\"(prefers-color-scheme: light)\">"))
         assertTrue(htmlContent.contains("<meta name=\"theme-color\" content=\"#0d1117\" media=\"(prefers-color-scheme: dark)\">"))
         assertRobotsDirective(htmlContent)
-        assertTrue(htmlContent.contains("<nav aria-label=\"디렉토리 목록\">"))
+        assertTrue(htmlContent.contains("<nav aria-labelledby=\"nav-heading\">"))
+        assertTrue(htmlContent.contains("<h2 id=\"nav-heading\" class=\"visually-hidden\">디렉토리 목록</h2>"))
         assertTrue(htmlContent.contains("role=\"list\""))
         assertTrue(htmlContent.contains("<main>"))
         assertTrue(htmlContent.contains("</main>"))
