diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 15a736630..51f8e49b0 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -470,7 +470,7 @@ jobs:
           report_name: Coverage Admin Interface
           type: lcov
           result_path: ./coverage/lcov.info
-          min_coverage: 76
+          min_coverage: 77
           token: ${{ github.token }}
 
   ##############################################################################
diff --git a/admin/src/graphql/verifyLogin.js b/admin/src/graphql/verifyLogin.js
index 553557f3c..ea08bb5b1 100644
--- a/admin/src/graphql/verifyLogin.js
+++ b/admin/src/graphql/verifyLogin.js
@@ -7,6 +7,7 @@ export const verifyLogin = gql`
       lastName
       isAdmin
       id
+      language
     }
   }
 `
diff --git a/admin/src/main.js b/admin/src/main.js
index 2743e0f9a..c0004beca 100644
--- a/admin/src/main.js
+++ b/admin/src/main.js
@@ -42,7 +42,7 @@ Vue.use(Toasted, {
   },
 })
 
-addNavigationGuards(router, store, apolloProvider.defaultClient)
+addNavigationGuards(router, store, apolloProvider.defaultClient, i18n)
 
 new Vue({
   moment,
diff --git a/admin/src/router/guards.js b/admin/src/router/guards.js
index 4ed6c8516..dd61e8657 100644
--- a/admin/src/router/guards.js
+++ b/admin/src/router/guards.js
@@ -1,7 +1,7 @@
 import { verifyLogin } from '../graphql/verifyLogin'
 import CONFIG from '../config'
 
-const addNavigationGuards = (router, store, apollo) => {
+const addNavigationGuards = (router, store, apollo, i18n) => {
   // store token on `authenticate`
   router.beforeEach(async (to, from, next) => {
     if (to.path === '/authenticate' && to.query && to.query.token) {
@@ -14,6 +14,7 @@ const addNavigationGuards = (router, store, apollo) => {
         .then((result) => {
           const moderator = result.data.verifyLogin
           if (moderator.isAdmin) {
+            i18n.locale = moderator.language
             store.commit('moderator', moderator)
             next({ path: '/' })
           } else {
diff --git a/admin/src/router/guards.test.js b/admin/src/router/guards.test.js
index cd5b33e68..da4dd5969 100644
--- a/admin/src/router/guards.test.js
+++ b/admin/src/router/guards.test.js
@@ -6,9 +6,11 @@ const apolloQueryMock = jest.fn().mockResolvedValue({
   data: {
     verifyLogin: {
       isAdmin: true,
+      language: 'de',
     },
   },
 })
+const i18nLocaleMock = jest.fn()
 
 const store = {
   commit: storeCommitMock,
@@ -21,7 +23,11 @@ const apollo = {
   query: apolloQueryMock,
 }
 
-addNavigationGuards(router, store, apollo)
+const i18n = {
+  locale: i18nLocaleMock,
+}
+
+addNavigationGuards(router, store, apollo, i18n)
 
 describe('navigation guards', () => {
   beforeEach(() => {
@@ -33,19 +39,23 @@ describe('navigation guards', () => {
     const next = jest.fn()
 
     describe('with valid token and as admin', () => {
-      beforeEach(() => {
-        navGuard({ path: '/authenticate', query: { token: 'valid-token' } }, {}, next)
+      beforeEach(async () => {
+        await navGuard({ path: '/authenticate', query: { token: 'valid-token' } }, {}, next)
       })
 
-      it('commits the token to the store', async () => {
+      it('commits the token to the store', () => {
         expect(storeCommitMock).toBeCalledWith('token', 'valid-token')
       })
 
-      it('commits the moderator to the store', () => {
-        expect(storeCommitMock).toBeCalledWith('moderator', { isAdmin: true })
+      it.skip('sets the locale', () => {
+        expect(i18nLocaleMock).toBeCalledWith('de')
       })
 
-      it('redirects to /', async () => {
+      it('commits the moderator to the store', () => {
+        expect(storeCommitMock).toBeCalledWith('moderator', { isAdmin: true, language: 'de' })
+      })
+
+      it('redirects to /', () => {
         expect(next).toBeCalledWith({ path: '/' })
       })
     })
diff --git a/frontend/src/main.js b/frontend/src/main.js
index edc9e575e..544dff66d 100755
--- a/frontend/src/main.js
+++ b/frontend/src/main.js
@@ -28,7 +28,7 @@ Vue.toasted.register(
 
 loadAllRules(i18n)
 
-addNavigationGuards(router, store, apolloProvider.defaultClient)
+addNavigationGuards(router, store, apolloProvider.defaultClient, i18n)
 
 if (!store) {
   setTimeout(
diff --git a/frontend/src/routes/guards.js b/frontend/src/routes/guards.js
index 1838fa0fc..15d1eb5a1 100644
--- a/frontend/src/routes/guards.js
+++ b/frontend/src/routes/guards.js
@@ -1,6 +1,6 @@
 import { verifyLogin } from '../graphql/queries'
 
-const addNavigationGuards = (router, store, apollo) => {
+const addNavigationGuards = (router, store, apollo, i18n) => {
   // handle publisherId
   router.beforeEach((to, from, next) => {
     const publisherId = to.query.pid
@@ -21,6 +21,7 @@ const addNavigationGuards = (router, store, apollo) => {
           fetchPolicy: 'network-only',
         })
         .then((result) => {
+          i18n.locale = result.data.verifyLogin.language
           store.dispatch('login', result.data.verifyLogin)
           next({ path: '/overview' })
         })
diff --git a/frontend/src/routes/guards.test.js b/frontend/src/routes/guards.test.js
index fa9f60f56..d4d2869d4 100644
--- a/frontend/src/routes/guards.test.js
+++ b/frontend/src/routes/guards.test.js
@@ -23,7 +23,11 @@ const apollo = {
   query: apolloQueryMock,
 }
 
-addNavigationGuards(router, store, apollo)
+const i18n = {
+  locale: jest.fn(),
+}
+
+addNavigationGuards(router, store, apollo, i18n)
 
 describe('navigation guards', () => {
   beforeEach(() => {