diff --git a/nodePackages/web/src/components/molecules/LanguageChanger.tsx b/nodePackages/web/src/components/molecules/LanguageChanger.tsx
index 288b7f56..957ca937 100644
--- a/nodePackages/web/src/components/molecules/LanguageChanger.tsx
+++ b/nodePackages/web/src/components/molecules/LanguageChanger.tsx
@@ -1,4 +1,4 @@
-import { A } from '@solidjs/router';
+import { A, useLocation } from '@solidjs/router';
 import { TbLanguageHiragana } from 'solid-icons/tb';
 import type { Component } from 'solid-js';
 import { useLanguageHref } from '../../modules/useLanguageHref';
@@ -10,6 +10,7 @@ import { useLanguageHref } from '../../modules/useLanguageHref';
 export const LanguageChanger: Component = () => {
   const enLink = useLanguageHref('en');
   const jaLink = useLanguageHref('ja');
+  const location = useLocation();
   return (
     <details class="dropdown">
       <summary class="btn btn-ghost">
@@ -23,7 +24,7 @@ export const LanguageChanger: Component = () => {
         </li>
         <li>
           <A class="btn btn-ghost justify-start" href={jaLink()}>
-            🇯🇵 日本語
+            🇯🇵 日本語 {JSON.stringify(location)}
           </A>
         </li>
       </ul>
diff --git a/nodePackages/web/src/modules/useLanguageHref.ts b/nodePackages/web/src/modules/useLanguageHref.ts
index dd1aacec..aa374942 100644
--- a/nodePackages/web/src/modules/useLanguageHref.ts
+++ b/nodePackages/web/src/modules/useLanguageHref.ts
@@ -12,6 +12,7 @@ const regexp = /^(en|ja)/;
  */
 export const useLanguageHref = (target: Language) => {
   const location = useLocation();
+  console.warn(location.pathname);
   return createMemo(() =>
     regexp.test(location.pathname)
       ? location.pathname.replace(regexp, `/${target}`)