diff --git a/frontend/src/components/TopNav.tsx b/frontend/src/components/TopNav.tsx
index 3cf2f07..27d40b1 100644
--- a/frontend/src/components/TopNav.tsx
+++ b/frontend/src/components/TopNav.tsx
@@ -79,12 +79,12 @@ export default (({ user }: Props) => {
 	  { name: '上位タグ', to: '/tags/implications', visible: false },
 	  { name: 'ニコニコ連携', to: '/tags/nico' },
 	  { name: 'ヘルプ', to: '/wiki/ヘルプ:タグ' }] },
-      { name: '素材', to: '/materials', subMenu: [
-	  { name: '一覧', to: '/materials' },
-	  // { name: '検索', to: '/materials/search' }, 
-	  { name: '追加', to: '/materials/new' },
-	  // { name: '履歴', to: '/materials/changes' },
-	  { name: 'ヘルプ', to: '/wiki/ヘルプ:素材集' }] },
+      // { name: '素材', to: '/materials', subMenu: [
+      //     { name: '一覧', to: '/materials' },
+      //     { name: '検索', to: '/materials/search', visible: false }, 
+      //     { name: '追加', to: '/materials/new' },
+      //     { name: '履歴', to: '/materials/changes', visible: false },
+      //     { name: 'ヘルプ', to: '/wiki/ヘルプ:素材集' }] },
       { name: '上映会', to: '/theatres/1', base: '/theatres', subMenu: [
           { name: <>第&thinsp;1&thinsp;会場</>, to: '/theatres/1' },
           { name: 'CyTube', to: '//cytube.mm428.net/r/deernijika' },