diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 36c0282..d54981b 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -69,28 +69,26 @@ export default () => {
   }
 
   return (
-      <>
+      <BrowserRouter>
 	<div className="flex flex-col h-screen w-screen">
 	  <TopNav user={user} />
-	  <BrowserRouter>
-	    <Routes>
-	      <Route path="/" element={<Navigate to="/posts" replace />} />
-	      <Route path="/posts" element={<PostListPage />} />
-	      <Route path="/posts/new" element={<PostNewPage user={user} />} />
-	      <Route path="/posts/:id" element={<PostDetailPage user={user} />} />
-	      <Route path="/tags/nico" element={<NicoTagListPage user={user} />} />
-	      <Route path="/wiki" element={<WikiSearchPage />} />
-	      <Route path="/wiki/:title" element={<WikiDetailPage />} />
-	      <Route path="/wiki/new" element={<WikiNewPage user={user} />} />
-	      <Route path="/wiki/:id/edit" element={<WikiEditPage user={user} />} />
-	      <Route path="/wiki/:id/diff" element={<WikiDiffPage />} />
-	      <Route path="/wiki/changes" element={<WikiHistoryPage />} />
-	      <Route path="/users/settings" element={<SettingPage user={user} setUser={setUser} />} />
-	      <Route path="/settings" element={<Navigate to="/users/settings" replace />} />
-	      <Route path="*" element={<NotFound />} />
-	    </Routes>
-	  </BrowserRouter>
+	  <Routes>
+	    <Route path="/" element={<Navigate to="/posts" replace />} />
+	    <Route path="/posts" element={<PostListPage />} />
+	    <Route path="/posts/new" element={<PostNewPage user={user} />} />
+	    <Route path="/posts/:id" element={<PostDetailPage user={user} />} />
+	    <Route path="/tags/nico" element={<NicoTagListPage user={user} />} />
+	    <Route path="/wiki" element={<WikiSearchPage />} />
+	    <Route path="/wiki/:title" element={<WikiDetailPage />} />
+	    <Route path="/wiki/new" element={<WikiNewPage user={user} />} />
+	    <Route path="/wiki/:id/edit" element={<WikiEditPage user={user} />} />
+	    <Route path="/wiki/:id/diff" element={<WikiDiffPage />} />
+	    <Route path="/wiki/changes" element={<WikiHistoryPage />} />
+	    <Route path="/users/settings" element={<SettingPage user={user} setUser={setUser} />} />
+	    <Route path="/settings" element={<Navigate to="/users/settings" replace />} />
+	    <Route path="*" element={<NotFound />} />
+	  </Routes>
 	</div>
 	<Toaster />
-      </>)
+      </BrowserRouter>)
 }