diff --git a/client/src/router/index.js b/client/src/router/index.js
index 44214e50..48808a4b 100644
--- a/client/src/router/index.js
+++ b/client/src/router/index.js
@@ -1,7 +1,6 @@
 import Vue from 'vue'
 // import index from '@/pages/index'
 import topic from '@/pages/topic'
-import book from '@/pages/book'
 import moduleBase from '@/pages/module-base'
 import module from '@/pages/module'
 import rooms from '@/pages/rooms'
@@ -109,8 +108,7 @@ const routes = [
   {
     path: '/instruments/',
     name: 'instrument-overview',
-    component: instrumentOverview,
-    meta: {subnavigation: true}
+    component: instrumentOverview
   },
   {path: '/instrument/:slug', name: 'instrument', component: instrument, meta: {layout: 'simple'}},
   {path: '/submission/:id', name: 'submission', component: submission, meta: {layout: 'simple'}},
@@ -118,17 +116,7 @@ const routes = [
   {path: '/portfolio/:slug', name: 'project', component: project, props: true},
   {path: '/new-project/', name: 'new-project', component: newProject},
   {path: '/edit-project/:id', name: 'edit-project', component: editProject, props: true},
-  {
-    path: '/book',
-    name: 'book',
-    component: book,
-    meta: {
-      subnavigation: true
-    },
-    children: [
-      {path: 'topic/:topicSlug', name: 'topic', component: topic, meta: {subnavigation: true}}
-    ]
-  },
+  {path: '/topic/:topicSlug', name: 'topic', component: topic, alias: '/book/topic/:topicSlug'},
   {
     path: '/me',
     component: profilePage,