diff --git a/server/tests/api/server/config.ts b/server/tests/api/server/config.ts
index 7d21b6ce9..1782a8623 100644
--- a/server/tests/api/server/config.ts
+++ b/server/tests/api/server/config.ts
@@ -4,16 +4,19 @@ import 'mocha'
 import * as chai from 'chai'
 import { About } from '../../../../shared/models/server/about.model'
 import { CustomConfig } from '../../../../shared/models/server/custom-config.model'
-import { deleteCustomConfig, getAbout, killallServers, makeHTMLRequest, reRunServer } from '../../utils'
-const expect = chai.expect
-
+import { deleteCustomConfig, getAbout, killallServers, reRunServer } from '../../utils'
 import {
-  getConfig,
   flushTests,
+  getConfig,
+  getCustomConfig,
+  registerUser,
   runServer,
-  registerUser, getCustomConfig, setAccessTokensToServers, updateCustomConfig
+  setAccessTokensToServers,
+  updateCustomConfig
 } from '../../utils/index'
 
+const expect = chai.expect
+
 function checkInitialConfig (data: CustomConfig) {
   expect(data.instance.name).to.equal('PeerTube')
   expect(data.instance.shortDescription).to.equal(
@@ -69,12 +72,6 @@ function checkUpdatedConfig (data: CustomConfig) {
   expect(data.transcoding.resolutions['1080p']).to.be.false
 }
 
-function checkIndexTags (html: string, title: string, description: string, css: string) {
-  expect(html).to.contain('<title>' + title + '</title>')
-  expect(html).to.contain('<meta name="description" content="' + description + '" />')
-  expect(html).to.contain('<style class="custom-css-style">' + css + '</style>')
-}
-
 describe('Test config', function () {
   let server = null
 
@@ -115,14 +112,6 @@ describe('Test config', function () {
     checkInitialConfig(data)
   })
 
-  it('Should have valid index html tags (title, description...)', async function () {
-    const res = await makeHTMLRequest(server.url, '/videos/trending')
-
-    const description = 'PeerTube, a federated (ActivityPub) video streaming platform using P2P (BitTorrent) directly in the web browser ' +
-      'with WebTorrent and Angular.'
-    checkIndexTags(res.text, 'PeerTube', description, '')
-  })
-
   it('Should update the customized configuration', async function () {
     const newCustomConfig: CustomConfig = {
       instance: {
@@ -181,12 +170,6 @@ describe('Test config', function () {
     checkUpdatedConfig(data)
   })
 
-  it('Should have valid index html updated tags (title, description...)', async function () {
-    const res = await makeHTMLRequest(server.url, '/videos/trending')
-
-    checkIndexTags(res.text, 'PeerTube updated', 'my short description', 'body { background-color: red; }')
-  })
-
   it('Should have the configuration updated after a restart', async function () {
     this.timeout(10000)
 
@@ -198,10 +181,6 @@ describe('Test config', function () {
     const data = res.body
 
     checkUpdatedConfig(data)
-
-    // Check HTML too
-    const resHtml = await makeHTMLRequest(server.url, '/videos/trending')
-    checkIndexTags(resHtml.text, 'PeerTube updated', 'my short description', 'body { background-color: red; }')
   })
 
   it('Should fetch the about information', async function () {
diff --git a/server/tests/client.ts b/server/tests/client.ts
index 687655452..bcbac86e9 100644
--- a/server/tests/client.ts
+++ b/server/tests/client.ts
@@ -11,8 +11,15 @@ import {
   runServer,
   serverLogin,
   uploadVideo,
-  getVideosList, updateCustomConfig, getCustomConfig, killallServers
+  getVideosList, updateCustomConfig, getCustomConfig, killallServers, makeHTMLRequest
 } from './utils'
+import { CustomConfig } from '../../shared/models/server/custom-config.model'
+
+function checkIndexTags (html: string, title: string, description: string, css: string) {
+  expect(html).to.contain('<title>' + title + '</title>')
+  expect(html).to.contain('<meta name="description" content="' + description + '" />')
+  expect(html).to.contain('<style class="custom-css-style">' + css + '</style>')
+}
 
 describe('Test a client controllers', function () {
   let server: ServerInfo
@@ -101,6 +108,77 @@ describe('Test a client controllers', function () {
     expect(res.text).to.contain('<meta property="twitter:site" content="@Kuja" />')
   })
 
+  it('Should have valid index html tags (title, description...)', async function () {
+    const res = await makeHTMLRequest(server.url, '/videos/trending')
+
+    const description = 'PeerTube, a federated (ActivityPub) video streaming platform using P2P (BitTorrent) directly in the web browser ' +
+      'with WebTorrent and Angular.'
+    checkIndexTags(res.text, 'PeerTube', description, '')
+  })
+
+  it('Should update the customized configuration and have the correct index html tags', async function () {
+    const newCustomConfig: CustomConfig = {
+      instance: {
+        name: 'PeerTube updated',
+        shortDescription: 'my short description',
+        description: 'my super description',
+        terms: 'my super terms',
+        defaultClientRoute: '/videos/recently-added',
+        defaultNSFWPolicy: 'blur' as 'blur',
+        customizations: {
+          javascript: 'alert("coucou")',
+          css: 'body { background-color: red; }'
+        }
+      },
+      services: {
+        twitter: {
+          username: '@Kuja',
+          whitelisted: true
+        }
+      },
+      cache: {
+        previews: {
+          size: 2
+        },
+        captions: {
+          size: 3
+        }
+      },
+      signup: {
+        enabled: false,
+        limit: 5
+      },
+      admin: {
+        email: 'superadmin1@example.com'
+      },
+      user: {
+        videoQuota: 5242881
+      },
+      transcoding: {
+        enabled: true,
+        threads: 1,
+        resolutions: {
+          '240p': false,
+          '360p': true,
+          '480p': true,
+          '720p': false,
+          '1080p': false
+        }
+      }
+    }
+    await updateCustomConfig(server.url, server.accessToken, newCustomConfig)
+
+    const res = await makeHTMLRequest(server.url, '/videos/trending')
+
+    checkIndexTags(res.text, 'PeerTube updated', 'my short description', 'body { background-color: red; }')
+  })
+
+  it('Should have valid index html updated tags (title, description...)', async function () {
+    const res = await makeHTMLRequest(server.url, '/videos/trending')
+
+    checkIndexTags(res.text, 'PeerTube updated', 'my short description', 'body { background-color: red; }')
+  })
+
   after(async function () {
     killallServers([ server ])
   })