diff --git a/views/posts.pug b/views/posts.pug
index c25bcfc..fa75091 100644
--- a/views/posts.pug
+++ b/views/posts.pug
@@ -20,7 +20,8 @@ html(lang="ja")
             i.bi-gear-fill.ms-1
           ul.dropdown-menu.dropdown-menu-end(aria-labelledby="menu")
             li
-              a.dropdown-item(href="/changeTheme") ライトモード・ダークモードの切り替え
+              - const changeThemeText = (currentTheme === 'light' ? 'ダークモードに切り替え' : 'ライトモードに切り替え');
+              a.dropdown-item(href="/changeTheme") #{changeThemeText}
               a.dropdown-item(href="/logout") ログアウト
     each post in posts
       - const cardClass = (user === post.postedBy ? 'card my-3 border-primary' : 'card my-3')
@@ -51,4 +52,4 @@ html(lang="ja")
     script(src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"
       integrity="sha256-qlPVgvl+tZTCpcxYJFdHB/m6mDe84wRr+l81VoYPTgQ="
       crossorigin="anonymous")
-    script(src="nn-chat.js")
\ No newline at end of file
+    script(src="nn-chat.js")